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Re: [Xen-devel] [PATCH v2] tools/xen-mceinj: support AMD



Egger, Christoph wrote:
> On 31.05.13 16:35, Liu, Jinsong wrote:
>> Christoph Egger wrote:
>>> On 31.05.13 13:31, Liu, Jinsong wrote:
>>>> Seems it cannot patch to latest tree, so please rebase (I agree
>>>> it's our fault not response in time ... sorry).
>>>> Some comments below.
>>>> 
>>>> Thanks,
>>>> Jinsong
>>>> 
>>>> Egger, Christoph wrote:
>>>>> a8206654c64f:patches chegger$ cat xen_mceinj.diff
>>>>> commit a277555e158c87aed34196f72eba0a4cf8f0fb38
>>>>> Author: Christoph Egger <chegger@xxxxxxxxx>
>>>>> Date:   Wed Feb 27 14:52:19 2013 +0000
>>>>> 
>>>>>     xen-mceinj: Support AMD. Add -e option.
>>>>> 
>>>>>     Add support for AMD.
>>>> 
>>>> It's pretty OK for this purpose, but ...
>>>> 
>>>>>     Add -e option to raise an exception.
>>>> 
>>>> ... why need -e option w/ opt_exception variable?
>>>> AFAICT, it works fine w/o -e. Please add more comments
>>>> for strong reason, especially it need force user to change command
>>>> line.
>>> 
>>> Without -e this allows you to test the polling handler and -e this
>>> allows you to test the exception handler.
>> 
>> If for new polling purpose, isn't it more reasonable to add
>> another explicit option for polling?
> 
> What do you suggest? -p is already in use for the physical address.

say, -P, considering how rarely polling case was tested, it's OK.

> 
>> In this way we keep same
>> style/interface with old one, defaultly test mce.
> 
> You sound you have scripts that require an adjustment when the
> default behaviour changes, right?

Our QA use scripts for nightly test (though it's not difficult to change 
script).
As common usage, the default option should for most common case -- we always 
use this tools to test mce case. It's just weird to me that user have to change 
interface to add a special option for most common test case.

But anyway, if you don't want to change your approach, I don't strongly against 
it, as far as Jan agree it.

Thanks,
Jinsong

> 
>> What is more, please add description (especially the --help)
>> for polling purpose -- I didn't find it from code review or from
>> description. 
> 
> Ok, I clarify the --help message.
> 
> Christoph
> 
>>> 
>>>>> 
>>>>>     Signed-off-by: Christoph Egger <chegger@xxxxxxxxx>
>>>>> 
>>>>> diff --git a/tools/tests/mce-test/tools/xen-mceinj.c
>>>>> b/tools/tests/mce-test/tools/xen-mceinj.c
>>>>> index e3e62f7..7400a02 100644
>>>>> --- a/tools/tests/mce-test/tools/xen-mceinj.c
>>>>> +++ b/tools/tests/mce-test/tools/xen-mceinj.c
>>>>> @@ -1,6 +1,8 @@
>>>>>  /*
>>>>>   * xen-mceinj.c: utilities to inject fake MCE for x86.
>>>>>   * Copyright (c) 2010, Intel Corporation.
>>>>> + * Copyright (c) 2012, AMD Cooperation Inc.
>>>>> + * Copyright (c) 2013, Amazon.com, Inc. or its affiliates.   *
>>>>>   * This program is free software; you can redistribute it and/or
>>>>> modify it 
>>>>>   * under the terms and conditions of the GNU General Public
>>>>> License, @@ -18,6 +20,7 @@ 
>>>>>   * Authors: Yunhong Jiang <yunhong.jiang@xxxxxxxxx>
>>>>>   *          Haicheng Li <haicheng.li@xxxxxxxxx>
>>>>>   *          Xudong Hao <xudong.hao@xxxxxxxxx>
>>>>> + *          Christoph Egger <chegger@xxxxxxxxx>
>>>>>   */
>>>>> 
>>>>> 
>>>>> @@ -44,11 +47,14 @@
>>>>>  #define MCi_type_STATUS     0x1
>>>>>  #define MCi_type_ADDR       0x2
>>>>>  #define MCi_type_MISC       0x3
>>>>> -#define MCi_type_CTL2       0x4
>>>>> +#define MC4_type_MISC1      0x4
>>>>> +#define MC4_type_MISC2      0x5
>>>>> +#define MC4_type_MISC3      0x6
>>>>> +#define MCi_type_CTL2       0x7
>>>> 
>>>> Why change original sequence? I didn't see the necessity of doing
>>>> so --> please add new types behind old ones so that we don't need
>>>> test old logic again.
>>> 
>>> See Jan's comment.
>> 
>> Agree.
>> 
>>> 
>>>>> 
>>>>>  #define INVALID_MSR         ~0UL
>>>>> 
>>>>> -/* Intel MSRs */
>>>>> +/* X86 machine check MSRs */
>>>>>  #define MSR_IA32_MCG_CAP         0x00000179
>>>>>  #define MSR_IA32_MCG_STATUS      0x0000017a
>>>>>  #define MSR_IA32_MCG_CTL         0x0000017b
>>>>> @@ -56,35 +62,63 @@
>>>>>  #define MSR_IA32_MC0_STATUS      0x00000401
>>>>>  #define MSR_IA32_MC0_ADDR        0x00000402
>>>>>  #define MSR_IA32_MC0_MISC        0x00000403
>>>>> +
>>>>> +/* Intel MSRs */
>>>>>  #define MSR_IA32_MC0_CTL2        0x00000280
>>>>> 
>>>>> -/* LLC (Last Level Cache) EWB (Explicit Write Back) SRAO MCE */
>>>>> +/* Intel: LLC (Last Level Cache) EWB (Explicit Write Back) SRAO
>>>>>  MCE */ #define MCG_STATUS_SRAO_LLC_VAL  0x5
>>>>>  #define MCE_SRAO_LLC_BANK        0x7
>>>>>  #define MCi_STATUS_SRAO_LLC_VAL  0xBD2000008000017AUL
>>>>>  #define MCi_MISC_SRAO_LLC_VAL    0x86UL
>>>>> 
>>>>> -/* Memory Patrol Scrub SRAO MCE */
>>>>> +/* Intel: Memory Patrol Scrub SRAO MCE */
>>>>>  #define MCG_STATUS_SRAO_MEM_VAL  0x5
>>>>>  #define MCE_SRAO_MEM_BANK        0x8
>>>>>  #define MCi_STATUS_SRAO_MEM_VAL  0xBD000000004000CFUL
>>>>>  #define MCi_MISC_SRAO_MEM_VAL    0x86UL
>>>>> 
>>>>> -/* LLC EWB UCNA Error */
>>>>> +/* Intel: LLC EWB UCNA Error */
>>>>>  #define MCG_STATUS_UCNA_LLC_VAL  0x0
>>>>>  #define CMCI_UCNA_LLC_BANK       0x9
>>>>>  #define MCi_STATUS_UCNA_LLC_VAL  0xBC20000080000136UL
>>>>>  #define MCi_MISC_UCNA_LLC_VAL    0x86UL
>>>>> 
>>>>> -/* Error Types */
>>>>> -#define MCE_SRAO_MEM        0x0
>>>>> -#define MCE_SRAO_LLC        0x1
>>>>> -#define CMCI_UCNA_LLC       0x2
>>>>> +/* Intel: Error Types */
>>>>> +#define INTEL_MCE_SRAO_MEM        0x0
>>>>> +#define INTEL_MCE_SRAO_LLC        0x1
>>>>> +#define INTEL_CMCI_UCNA_LLC       0x2
>>>>> +
>>>>> +/* AMD: Memory Error */
>>>>> +#define MCG_STATUS_MEM_VAL        0x5
>>>>> +#define MCE_MEM_BANK              0x4
>>>>> +#define MCi_STATUS_MEM_VAL        0xb4000000001c0100UL
>>>>> +//#define MCi_STATUS_MEM_VAL        0xb600000000000100UL
>>>> 
>>>> Hmm, drop this test code please.
>>> 
>>> What do you not like? The // ?
>>> 
>>> Christoph
>> 
>> Yes, If you like to keep test code, /*  */ seems better -- Just my
>> personal prefer. 
>> 
>> Thanks,
>> Jinsong
>> 
>>> 
>>>> 
>>>>> +#define MCi_MISC_MEM_VAL          0x0
>>>>> +
>>>>> +/* AMD: L3 Cache Error */
>>>>> +#define MCG_STATUS_L3_VAL         0x5
>>>>> +#define MCE_L3_BANK               0x4
>>>>> +#define MCi_STATUS_L3_VAL         0xbc000400001c010bULL
>>>>> +#define MC4_MISC0_VAL             0x0
>>>>> +#define MC4_MISC1_VAL             0x0
>>>>> +#define MC4_MISC2_L3_VAL          0xc008000000000003ULL + +/*
>>>>> AMD: Error Types */ +#define AMD_MCE_MEM               0x0 /*
>>>>> memory error */ +#define AMD_MCE_L3                0x1 /* l3
>>>>> cache */ 
>>>>> 
>>>>>  #define LOGFILE stdout
>>>>> 
>>>>> -int dump;
>>>>> -struct xen_mc_msrinject msr_inj;
>>>>> +static int dump;
>>>>> +static int opt_exception;
>>>>> +static struct xen_mc_msrinject msr_inj;
>>>>> +
>>>>> +#define CPU_VENDOR_UNKNOWN  -1
>>>>> +#define CPU_VENDOR_AMD       0
>>>>> +#define CPU_VENDOR_INTEL     1
>>>>> +static int cpu_vendor;
>>>>> +
>>>>> 
>>>>>  static void Lprintf(const char *fmt, ...)
>>>>>  {
>>>>> @@ -145,7 +179,7 @@ static int mca_cpuinfo(xc_interface
>>>>> *xc_handle)  return 0; } 
>>>>> 
>>>>> -static int inject_cmci(xc_interface *xc_handle, int cpu_nr)
>>>>> +static int intel_inject_cmci(xc_interface *xc_handle)  {     
>>>>>      struct xen_mc mc; int nr_cpus;
>>>>> @@ -191,6 +225,15 @@ static uint64_t bank_addr(int bank, int type)
>>>>>              case MCi_type_MISC: addr = MSR_IA32_MC0_CTL + (bank *
>>>>> 4) + type;              break; +        case MC4_type_MISC1:
>>>>> +            addr = 0xc0000408;
>>>>> +            break;
>>>>> +        case MC4_type_MISC2:
>>>>> +            addr = 0xc0000409;
>>>>> +            break;
>>>>> +        case MC4_type_MISC3:
>>>>> +            addr = 0xc000040a;
>>>>> +            break;
>>>>>          case MCi_type_CTL2:
>>>>>              addr = MSR_IA32_MC0_CTL2 + bank;
>>>>>              break;
>>>>> @@ -356,12 +399,11 @@ static int inject_mci_status(xc_interface
>>>>> *xc_handle, } 
>>>>> 
>>>>>  static int inject_mci_misc(xc_interface *xc_handle,
>>>>> -                             uint32_t cpu_nr,
>>>>> -                             uint64_t bank,
>>>>> -                             uint64_t val)
>>>>> +                             uint32_t cpu_nr, uint32_t misctype,
>>>>> +                             uint64_t bank, uint64_t val)  {
>>>>>      return add_msr_bank_intpose(xc_handle, cpu_nr,
>>>>> MC_MSRINJ_F_INTERPOSE, - MCi_type_MISC, bank, val); +
>>>>>  MCi_type_MISC + misctype, bank, val); }
>>>>> 
>>>>>  static int inject_mci_addr(xc_interface *xc_handle,
>>>>> @@ -373,10 +415,8 @@ static int inject_mci_addr(xc_interface
>>>>>                                      *xc_handle, MCi_type_ADDR,
>>>>> bank,  val); } 
>>>>> 
>>>>> -static int inject_llc_srao(xc_interface *xc_handle,
>>>>> -                             uint32_t cpu_nr,
>>>>> -                             uint32_t domain,
>>>>> -                             uint64_t gaddr)
>>>>> +static int intel_inject_llc_srao(xc_interface *xc_handle,
>>>>> +    uint32_t cpu_nr, uint32_t domain, uint64_t gaddr)  {
>>>>>      uint64_t gpfn, mfn, haddr;
>>>>>      int ret = 0;
>>>>> @@ -390,7 +430,7 @@ static int inject_llc_srao(xc_interface
>>>>>          *xc_handle, if ( ret ) err(xc_handle, "Failed to inject
>>>>> MCi_STATUS MSR\n"); 
>>>>> 
>>>>> -    ret = inject_mci_misc(xc_handle, cpu_nr,
>>>>> +    ret = inject_mci_misc(xc_handle, cpu_nr, 0,
>>>>>                            MCE_SRAO_LLC_BANK,
>>>>>          MCi_MISC_SRAO_LLC_VAL);      if ( ret ) err(xc_handle,
>>>>> "Failed to inject MCi_MISC MSR\n"); @@ -407,17 +447,18 @@ static
>>>>>      int inject_llc_srao(xc_interface *xc_handle, ret =
>>>>>      flush_msr_inj(xc_handle); if ( ret )
>>>>>          err(xc_handle, "Failed to inject MSR\n");
>>>>> -    ret = inject_mce(xc_handle, cpu_nr);
>>>>> -    if ( ret )
>>>>> -        err(xc_handle, "Failed to inject MCE error\n"); + +   
>>>>> if (opt_exception) { +        ret = inject_mce(xc_handle, cpu_nr);
>>>>> +        if ( ret )
>>>>> +            err(xc_handle, "Failed to inject MCE error\n"); +   
>>>>> } 
>>>>> 
>>>>>      return 0;
>>>>>  }
>>>>> 
>>>>> -static int inject_mem_srao(xc_interface *xc_handle,
>>>>> -                             uint32_t cpu_nr,
>>>>> -                             uint32_t domain,
>>>>> -                             uint64_t gaddr)
>>>>> +static int intel_inject_mem_srao(xc_interface *xc_handle,
>>>>> +    uint32_t cpu_nr, uint32_t domain, uint64_t gaddr)  {
>>>>>      uint64_t gpfn, mfn, haddr;
>>>>>      int ret = 0;
>>>>> @@ -431,7 +472,7 @@ static int inject_mem_srao(xc_interface
>>>>>          *xc_handle, if ( ret ) err(xc_handle, "Failed to inject
>>>>> MCi_STATUS MSR\n"); 
>>>>> 
>>>>> -    ret = inject_mci_misc(xc_handle, cpu_nr,
>>>>> +    ret = inject_mci_misc(xc_handle, cpu_nr, 0,
>>>>>                            MCE_SRAO_MEM_BANK,
>>>>>          MCi_MISC_SRAO_MEM_VAL);      if ( ret ) err(xc_handle,
>>>>> "Failed to inject MCi_MISC MSR\n"); @@ -448,17 +489,18 @@ static
>>>>>      int inject_mem_srao(xc_interface *xc_handle, ret =
>>>>>      flush_msr_inj(xc_handle); if ( ret )
>>>>>          err(xc_handle, "Failed to inject MSR\n");
>>>>> -    ret = inject_mce(xc_handle, cpu_nr);
>>>>> -    if ( ret )
>>>>> -        err(xc_handle, "Failed to inject MCE error\n"); + +   
>>>>> if (opt_exception) { +        ret = inject_mce(xc_handle, cpu_nr);
>>>>> +        if ( ret )
>>>>> +            err(xc_handle, "Failed to inject MCE error\n"); +   
>>>>> } 
>>>>> 
>>>>>      return 0;
>>>>>  }
>>>>> 
>>>>> -static int inject_llc_ucna(xc_interface *xc_handle,
>>>>> -                             uint32_t cpu_nr,
>>>>> -                             uint32_t domain,
>>>>> -                             uint64_t gaddr)
>>>>> +static int intel_inject_llc_ucna(xc_interface *xc_handle,
>>>>> +    uint32_t cpu_nr, uint32_t domain, uint64_t gaddr)  {
>>>>>      uint64_t gpfn, mfn, haddr;
>>>>>      int ret = 0;
>>>>> @@ -472,7 +514,7 @@ static int inject_llc_ucna(xc_interface
>>>>>          *xc_handle, if ( ret ) err(xc_handle, "Failed to inject
>>>>> MCi_STATUS MSR\n"); 
>>>>> 
>>>>> -    ret = inject_mci_misc(xc_handle, cpu_nr,
>>>>> +    ret = inject_mci_misc(xc_handle, cpu_nr, 0,
>>>>>                            CMCI_UCNA_LLC_BANK,
>>>>>          MCi_MISC_UCNA_LLC_VAL);      if ( ret ) err(xc_handle,
>>>>> "Failed to inject MCi_MISC MSR\n"); @@ -489,13 +531,108 @@ static
>>>>>      int inject_llc_ucna(xc_interface *xc_handle, ret =
>>>>>      flush_msr_inj(xc_handle); if ( ret )
>>>>>          err(xc_handle, "Failed to inject MSR\n");
>>>>> -    ret = inject_cmci(xc_handle, cpu_nr);
>>>>> +    ret = intel_inject_cmci(xc_handle);
>>>>>      if ( ret )
>>>>>          err(xc_handle, "Failed to inject MCE error\n");
>>>>> 
>>>>>      return 0;
>>>>>  }
>>>>> 
>>>>> +static int amd_inject_mem(xc_interface *xc_handle,
>>>>> +    uint32_t cpu_nr, uint32_t domain, uint64_t gaddr) +{
>>>>> +    uint64_t gpfn, mfn, haddr;
>>>>> +    int ret = 0;
>>>>> +
>>>>> +    ret = inject_mcg_status(xc_handle, cpu_nr,
>>>>> MCG_STATUS_MEM_VAL); +    if ( ret ) +        err(xc_handle,
>>>>> "Failed to inject MCG_STATUS MSR\n"); + +    ret =
>>>>> inject_mci_status(xc_handle, cpu_nr, +
>>>>> MCE_MEM_BANK, MCi_STATUS_MEM_VAL); +    if ( ret ) +
>>>>> err(xc_handle, "Failed to inject MCi_STATUS MSR\n"); + +    ret =
>>>>> inject_mci_misc(xc_handle, cpu_nr, 0, +
>>>>> MCE_MEM_BANK, MCi_MISC_MEM_VAL); +    if ( ret ) +
>>>>> err(xc_handle, "Failed to inject MCi_MISC MSR\n"); + +    gpfn =
>>>>> gaddr >> PAGE_SHIFT; +    mfn = mca_gpfn_to_mfn(xc_handle, domain,
>>>>> gpfn); +    if (!mfn_valid(mfn)) +        err(xc_handle, "The MFN
>>>>> is not valid\n"); +    haddr = (mfn << PAGE_SHIFT) | (gaddr &
>>>>> (PAGE_SIZE - 1)); +    ret = inject_mci_addr(xc_handle, cpu_nr,
>>>>> MCE_MEM_BANK, haddr); +    if ( ret ) +        err(xc_handle,
>>>>> "Failed to inject MCi_ADDR MSR\n"); + +    ret =
>>>>> flush_msr_inj(xc_handle); +    if ( ret )
>>>>> +        err(xc_handle, "Failed to inject MSR\n");
>>>>> +
>>>>> +    if (opt_exception) {
>>>>> +        ret = inject_mce(xc_handle, cpu_nr);
>>>>> +        if ( ret )
>>>>> +            err(xc_handle, "Failed to inject MCE error\n"); +   
>>>>> } + +    return 0;
>>>>> +}
>>>>> +
>>>>> +static int amd_inject_l3(xc_interface *xc_handle,
>>>>> +    uint32_t cpu_nr, uint32_t domain, uint64_t gaddr) +{
>>>>> +    uint64_t gpfn, mfn, haddr;
>>>>> +    int ret = 0;
>>>>> +
>>>>> +    ret = inject_mcg_status(xc_handle, cpu_nr,
>>>>> MCG_STATUS_L3_VAL); +    if ( ret ) +        err(xc_handle,
>>>>> "Failed to inject MCG_STATUS MSR\n"); + +    ret =
>>>>> inject_mci_status(xc_handle, cpu_nr, +                           
>>>>> MCE_L3_BANK, MCi_STATUS_L3_VAL); +    if ( ret ) +       
>>>>> err(xc_handle, "Failed to inject MCi_STATUS MSR\n"); + +    ret =
>>>>> inject_mci_misc(xc_handle, cpu_nr, 0, +
>>>>> MCE_L3_BANK, MC4_MISC0_VAL); +    if ( ret ) +
>>>>> err(xc_handle, "Failed to inject MC4_MISC0 MSR\n"); + +    ret =
>>>>> inject_mci_misc(xc_handle, cpu_nr, 1, +
>>>>> MCE_L3_BANK, MC4_MISC1_VAL); +    if ( ret ) +
>>>>> err(xc_handle, "Failed to inject MC4_MISC1 MSR\n"); + +    ret =
>>>>> inject_mci_misc(xc_handle, cpu_nr, 2, +
>>>>> MCE_L3_BANK, MC4_MISC2_L3_VAL); +    if ( ret ) +
>>>>> err(xc_handle, "Failed to inject MC4_MISC2 MSR\n"); + +    gpfn =
>>>>> gaddr >> PAGE_SHIFT; +    mfn = mca_gpfn_to_mfn(xc_handle, domain,
>>>>> gpfn); +    if (!mfn_valid(mfn)) +        err(xc_handle, "The MFN
>>>>> is not valid\n"); +    haddr = (mfn << PAGE_SHIFT) | (gaddr &
>>>>> (PAGE_SIZE - 1)); +    ret = inject_mci_addr(xc_handle, cpu_nr,
>>>>> MCE_L3_BANK, haddr); +    if ( ret ) +        err(xc_handle,
>>>>> "Failed to inject MCi_ADDR MSR\n"); + +    ret =
>>>>> flush_msr_inj(xc_handle); +    if ( ret )
>>>>> +        err(xc_handle, "Failed to inject MSR\n");
>>>>> +
>>>>> +    if (opt_exception) {
>>>>> +        ret = inject_mce(xc_handle, cpu_nr);
>>>>> +        if ( ret )
>>>>> +            err(xc_handle, "Failed to inject MCE error\n"); +   
>>>>> } + +    return 0;
>>>>> +}
>>>>> +
>>>>> +
>>>>>  static long xs_get_dom_mem(int domid)
>>>>>  {
>>>>>      char path[128];
>>>>> @@ -508,7 +645,7 @@ static long xs_get_dom_mem(int domid)      if
>>>>> (!xs) return -1; 
>>>>> 
>>>>> -    sprintf(path, "/local/domain/%d/memory/target", domid);
>>>>> +    snprintf(path, sizeof(path),
>>>>>      "/local/domain/%d/memory/target", domid); memstr =
>>>>> xs_read(xs, XBT_NULL, path, &plen); xs_daemon_close(xs); 
>>>>> 
>>>>> @@ -540,30 +677,109 @@ static void help(void)
>>>>>             "  -D, --dump           dump addr info without error
>>>>>             injection\n" "  -c, --cpu=CPU_ID     target CPU\n"
>>>>>             "  -d, --domain=DomID   target domain, the default is
>>>>> Xen itself\n" +           "  -e                   raise MCE
>>>>>             exception\n" "  -h, --help           print this
>>>>>             page\n" "  -p, --phyaddr        physical address\n"
>>>>> -           "  -t, --type=error     error type\n"
>>>>> -           "                        0 : MCE_SRAO_MEM\n"
>>>>> -           "                        1 : MCE_SRAO_LLC\n"
>>>>> -           "                        2 : CMCI_UCNA_LLC\n"
>>>>> -           "\n"
>>>>>             );
>>>>> +
>>>>> +    if (cpu_vendor == CPU_VENDOR_INTEL) {
>>>>> +           printf(
>>>>> +           "  -t, --type=error     error type\n"
>>>>> +           "                        0x0 : SRAO MEM\n"
>>>>> +           "                        0x1 : SRAO LLC\n"
>>>>> +           "                        0x2 : CMCI UCNA LLC\n"); +
>>>>> } +     if (cpu_vendor == CPU_VENDOR_AMD) {
>>>>> +           printf(
>>>>> +           "  -t, --type=error     error type\n"
>>>>> +           "                        0x0: DRAM error\n"
>>>>> +           "                        0x1: L3 cache error\n"); + }
>>>>> +     printf("\n"); +}
>>>>> +
>>>>> +static void cpuid(const unsigned int *input, unsigned int
>>>>> regs[4]) +{ +    unsigned int count = (input[1] ==
>>>>> XEN_CPUID_INPUT_UNUSED) ? 0 : input[1]; +#ifdef __i386__
>>>>> +    /* Use the stack to avoid reg constraint failures with some
>>>>> gcc flags */ +    asm ( +        "push %%ebx; push %%edx\n\t"
>>>>> +        "cpuid\n\t"
>>>>> +        "mov %%ebx,4(%4)\n\t"
>>>>> +        "mov %%edx,12(%4)\n\t"
>>>>> +        "pop %%edx; pop %%ebx\n\t"
>>>>> +        : "=a" (regs[0]), "=c" (regs[2])
>>>>> +        : "0" (input[0]), "1" (count), "S" (regs)
>>>>> +        : "memory" );
>>>>> +#else
>>>>> +    asm (
>>>>> +        "cpuid"
>>>>> +        : "=a" (regs[0]), "=b" (regs[1]), "=c" (regs[2]), "=d"
>>>>> (regs[3]) +        : "0" (input[0]), "2" (count) ); +#endif +}
>>>>> +
>>>>> +/* Get the manufacturer brand name of the host processor. */
>>>>> +static void cpuid_brand_get(char *str, size_t len) +{
>>>>> +    unsigned int input[2] = { 0, 0 };
>>>>> +    union {
>>>>> +        unsigned int regs[4];
>>>>> +        struct {
>>>>> +            char eax[4];
>>>>> +            char ebx[4];
>>>>> +            char ecx[4];
>>>>> +            char edx[4];
>>>>> +        } str_regs;
>>>>> +    } cpu_branding;
>>>>> +
>>>>> +    cpuid(input, cpu_branding.regs);
>>>>> +
>>>>> +    snprintf(str, len, "%c%c%c%c%c%c%c%c%c%c%c%c",
>>>>> +        cpu_branding.str_regs.ebx[0],
>>>>> cpu_branding.str_regs.ebx[1], +       
>>>>> cpu_branding.str_regs.ebx[2], cpu_branding.str_regs.ebx[3], +    
>>>>> cpu_branding.str_regs.edx[0], cpu_branding.str_regs.edx[1], +    
>>>>> cpu_branding.str_regs.edx[2], cpu_branding.str_regs.edx[3], +    
>>>>> cpu_branding.str_regs.ecx[0], cpu_branding.str_regs.ecx[1], +    
>>>>> cpu_branding.str_regs.ecx[2], cpu_branding.str_regs.ecx[3]);  }
>>>>> 
>>>>>  int main(int argc, char *argv[])
>>>>>  {
>>>>> -    int type = MCE_SRAO_MEM;
>>>>> +    int type;
>>>>>      int c, opt_index;
>>>>>      uint32_t domid;
>>>>>      xc_interface *xc_handle;
>>>>> -    int cpu_nr;
>>>>> -    int64_t gaddr, gpfn, mfn, haddr, max_gpa;
>>>>> +    unsigned int cpu_nr;
>>>>> +    uint64_t gaddr, gpfn, mfn, haddr, max_gpa;
>>>>> +    char cpu_brand[13];
>>>>> 
>>>>>      /* Default Value */
>>>>>      domid = DOMID_XEN;
>>>>>      gaddr = 0x180020;
>>>>>      cpu_nr = 0;
>>>>> 
>>>>> +    cpu_vendor = CPU_VENDOR_UNKNOWN;
>>>>> +    cpuid_brand_get(cpu_brand, sizeof(cpu_brand));
>>>>> +    if (strstr(cpu_brand, "AMD"))
>>>>> +        cpu_vendor = CPU_VENDOR_AMD;
>>>>> +    if (strstr(cpu_brand, "Intel"))
>>>>> +        cpu_vendor = CPU_VENDOR_INTEL;
>>>>> +
>>>>> +    switch (cpu_vendor) {
>>>>> +    case CPU_VENDOR_AMD:
>>>>> +        type = AMD_MCE_MEM;
>>>>> +        break;
>>>>> +    case CPU_VENDOR_INTEL:
>>>>> +        type = INTEL_MCE_SRAO_MEM;
>>>>> +        break;
>>>>> +    case CPU_VENDOR_UNKNOWN:
>>>>> +    default:
>>>>> +        Lprintf("Unknown cpu vendor on this machine\n"); +
>>>>> exit(EXIT_FAILURE); +    } +
>>>>>      init_msr_inj();
>>>>>      xc_handle = xc_interface_open(0, 0, 0);
>>>>>      if ( !xc_handle ) {
>>>>> @@ -571,8 +787,8 @@ int main(int argc, char *argv[])     
>>>>> exit(EXIT_FAILURE); } 
>>>>> 
>>>>> -    while ( 1 ) {
>>>>> -        c = getopt_long(argc, argv, "c:Dd:t:hp:r", opts,
>>>>> &opt_index); +    for (;;) { +        c = getopt_long(argc, argv,
>>>>>          "c:Dd:t:hp:r:e", opts, &opt_index); if ( c == -1 )      
>>>>>          break; switch ( c ) {
>>>>> @@ -580,23 +796,26 @@ int main(int argc, char *argv[])           
>>>>>          dump=1; break; case 'c':
>>>>> -            cpu_nr = strtol(optarg, &optarg, 10);
>>>>> +            cpu_nr = strtoul(optarg, &optarg, 0);
>>>>>              if ( strlen(optarg) != 0 )
>>>>>                  err(xc_handle, "Please input a digit parameter
>>>>>          for CPU\n"); break; case 'd':
>>>>> -            domid = strtol(optarg, &optarg, 10);
>>>>> +            domid = strtoul(optarg, &optarg, 0);
>>>>>              if ( strlen(optarg) != 0 )
>>>>>                  err(xc_handle, "Please input a digit parameter
>>>>>              for domain\n"); break;
>>>>>          case 'p':
>>>>> -            gaddr = strtol(optarg, &optarg, 0);
>>>>> +            gaddr = strtoul(optarg, &optarg, 0);
>>>>>              if ( strlen(optarg) != 0 )
>>>>>                  err(xc_handle, "Please input correct page
>>>>>              address\n"); break;
>>>>>          case 't':
>>>>>              type = strtol(optarg, NULL, 0);
>>>>>              break;
>>>>> +        case 'e':
>>>>> +            opt_exception = 1;
>>>>> +            break;
>>>>>          case 'h':
>>>>>          default:
>>>>>              help();
>>>>> @@ -627,19 +846,36 @@ int main(int argc, char *argv[])      goto
>>>>> out; } 
>>>>> 
>>>>> -    switch ( type )
>>>>> -    {
>>>>> -    case MCE_SRAO_MEM:
>>>>> -        inject_mem_srao(xc_handle, cpu_nr, domid, gaddr);
>>>>> -        break;
>>>>> -    case MCE_SRAO_LLC:
>>>>> -        inject_llc_srao(xc_handle, cpu_nr, domid, gaddr);
>>>>> -        break;
>>>>> -    case CMCI_UCNA_LLC:
>>>>> -        inject_llc_ucna(xc_handle, cpu_nr, domid, gaddr); +
>>>>> switch ( cpu_vendor ) { +    case CPU_VENDOR_INTEL: +       
>>>>> switch ( type ) { +        case INTEL_MCE_SRAO_MEM:
>>>>> +            intel_inject_mem_srao(xc_handle, cpu_nr, domid,
>>>>> gaddr); +            break; +        case INTEL_MCE_SRAO_LLC:
>>>>> +            intel_inject_llc_srao(xc_handle, cpu_nr, domid,
>>>>> gaddr); +            break; +        case INTEL_CMCI_UCNA_LLC:
>>>>> +            intel_inject_llc_ucna(xc_handle, cpu_nr, domid,
>>>>> gaddr); +            break; +        default:
>>>>> +            err(xc_handle, "Unsupported error type\n"); +
>>>>> break; +        }
>>>>>          break;
>>>>> -    default:
>>>>> -        err(xc_handle, "Unsupported error type\n"); + +    case
>>>>> CPU_VENDOR_AMD: +        switch ( type ) {
>>>>> +        case AMD_MCE_MEM:
>>>>> +            amd_inject_mem(xc_handle, cpu_nr, domid, gaddr); +
>>>>> break; +        case AMD_MCE_L3:
>>>>> +            amd_inject_l3(xc_handle, cpu_nr, domid, gaddr); +
>>>>> break; +        default: +            err(xc_handle, "Unsupported
>>>>> error type\n"); + 
>>>>> break; +        }
>>>>>          break;
>>>>>      }


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