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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 22/23] xen: platform_hypercall XSM hook removal
A number of the platform_hypercall XSM hooks have no parameters or only
pass the operation ID, making them redundant with the xsm_platform_op
hook. Remove these redundant hooks.
Signed-off-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
Cc: Keir Fraser <keir@xxxxxxx>
Cc: Jan Beulich <jbeulich@xxxxxxxx>
---
xen/arch/x86/platform_hypercall.c | 60 ---------------------
xen/include/xsm/dummy.h | 67 ------------------------
xen/include/xsm/xsm.h | 72 -------------------------
xen/xsm/dummy.c | 13 -----
xen/xsm/flask/hooks.c | 107 +++++++++++---------------------------
5 files changed, 30 insertions(+), 289 deletions(-)
diff --git a/xen/arch/x86/platform_hypercall.c
b/xen/arch/x86/platform_hypercall.c
index 738bed0..e17d64f 100644
--- a/xen/arch/x86/platform_hypercall.c
+++ b/xen/arch/x86/platform_hypercall.c
@@ -90,10 +90,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
{
case XENPF_settime:
{
- ret = xsm_xen_settime();
- if ( ret )
- break;
-
do_settime(op->u.settime.secs,
op->u.settime.nsecs,
op->u.settime.system_time);
@@ -103,10 +99,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
case XENPF_add_memtype:
{
- ret = xsm_memtype(op->cmd);
- if ( ret )
- break;
-
ret = mtrr_add_page(
op->u.add_memtype.mfn,
op->u.add_memtype.nr_mfns,
@@ -125,10 +117,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
case XENPF_del_memtype:
{
- ret = xsm_memtype(op->cmd);
- if ( ret )
- break;
-
if (op->u.del_memtype.handle == 0
/* mtrr/main.c otherwise does a lookup */
&& (int)op->u.del_memtype.reg >= 0)
@@ -147,10 +135,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
unsigned long mfn, nr_mfns;
mtrr_type type;
- ret = xsm_memtype(op->cmd);
- if ( ret )
- break;
-
ret = -EINVAL;
if ( op->u.read_memtype.reg < num_var_ranges )
{
@@ -167,10 +151,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
{
XEN_GUEST_HANDLE(const_void) data;
- ret = xsm_microcode();
- if ( ret )
- break;
-
guest_from_compat_handle(data, op->u.microcode.data);
/*
@@ -198,10 +178,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
{
int quirk_id = op->u.platform_quirk.quirk_id;
- ret = xsm_platform_quirk(quirk_id);
- if ( ret )
- break;
-
switch ( quirk_id )
{
case QUIRK_NOIRQBALANCING:
@@ -223,10 +199,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
break;
case XENPF_firmware_info:
- ret = xsm_firmware_info();
- if ( ret )
- break;
-
switch ( op->u.firmware_info.type )
{
case XEN_FW_DISK_INFO: {
@@ -335,10 +307,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
break;
case XENPF_efi_runtime_call:
- ret = xsm_efi_call();
- if ( ret )
- break;
-
ret = efi_runtime_call(&op->u.efi_runtime_call);
if ( ret == 0 &&
copy_field_to_guest(u_xenpf_op, op, u.efi_runtime_call) )
@@ -346,18 +314,10 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
break;
case XENPF_enter_acpi_sleep:
- ret = xsm_acpi_sleep();
- if ( ret )
- break;
-
ret = acpi_enter_sleep(&op->u.enter_acpi_sleep);
break;
case XENPF_change_freq:
- ret = xsm_change_freq();
- if ( ret )
- break;
-
ret = -ENOSYS;
if ( cpufreq_controller != FREQCTL_dom0_kernel )
break;
@@ -379,10 +339,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
XEN_GUEST_HANDLE(uint8) cpumap_bitmap;
XEN_GUEST_HANDLE(uint64) idletimes;
- ret = xsm_getidletime();
- if ( ret )
- break;
-
ret = -ENOSYS;
if ( cpufreq_controller != FREQCTL_dom0_kernel )
break;
@@ -419,10 +375,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
break;
case XENPF_set_processor_pminfo:
- ret = xsm_setpminfo();
- if ( ret )
- break;
-
switch ( op->u.set_pminfo.type )
{
case XEN_PM_PX:
@@ -475,10 +427,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
g_info = &op->u.pcpu_info;
- ret = xsm_getcpuinfo();
- if ( ret )
- break;
-
if ( !get_cpu_maps() )
{
ret = -EBUSY;
@@ -512,10 +460,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
{
struct xenpf_pcpu_version *ver = &op->u.pcpu_version;
- ret = xsm_getcpuinfo();
- if ( ret )
- break;
-
if ( !get_cpu_maps() )
{
ret = -EBUSY;
@@ -568,10 +512,6 @@ ret_t
do_platform_op(XEN_GUEST_HANDLE_PARAM(xen_platform_op_t) u_xenpf_op)
break;
}
- ret = xsm_resource_plug_core();
- if ( ret )
- break;
-
ret = continue_hypercall_on_cpu(
0, cpu_up_helper, (void *)(unsigned long)cpu);
break;
diff --git a/xen/include/xsm/dummy.h b/xen/include/xsm/dummy.h
index b680d61..019183e 100644
--- a/xen/include/xsm/dummy.h
+++ b/xen/include/xsm/dummy.h
@@ -63,21 +63,6 @@ static XSM_INLINE int xsm_readconsole(uint32_t clear)
return 0;
}
-static XSM_INLINE int xsm_getcpuinfo(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_setpminfo(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_pm_op(void)
-{
- return 0;
-}
-
static XSM_INLINE int xsm_do_mca(void)
{
if ( !IS_PRIV(current->domain) )
@@ -323,11 +308,6 @@ static XSM_INLINE int xsm_page_offline(uint32_t cmd)
return 0;
}
-static XSM_INLINE int xsm_lockprof(void)
-{
- return 0;
-}
-
static XSM_INLINE int xsm_tmem_op(void)
{
return 0;
@@ -453,26 +433,6 @@ static XSM_INLINE int xsm_apic(struct domain *d, int cmd)
return 0;
}
-static XSM_INLINE int xsm_xen_settime(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_memtype(uint32_t access)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_microcode(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_platform_quirk(uint32_t quirk)
-{
- return 0;
-}
-
static XSM_INLINE int xsm_platform_op(uint32_t op)
{
if ( !IS_PRIV(current->domain) )
@@ -480,33 +440,6 @@ static XSM_INLINE int xsm_platform_op(uint32_t op)
return 0;
}
-static XSM_INLINE int xsm_firmware_info(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_efi_call(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_acpi_sleep(void)
-{
- if ( !IS_PRIV(current->domain) )
- return -EPERM;
- return 0;
-}
-
-static XSM_INLINE int xsm_change_freq(void)
-{
- return 0;
-}
-
-static XSM_INLINE int xsm_getidletime(void)
-{
- return 0;
-}
-
static XSM_INLINE int xsm_machine_memory_map(void)
{
if ( !IS_PRIV(current->domain) )
diff --git a/xen/include/xsm/xsm.h b/xen/include/xsm/xsm.h
index f054dae..105201e 100644
--- a/xen/include/xsm/xsm.h
+++ b/xen/include/xsm/xsm.h
@@ -47,9 +47,6 @@ struct xsm_operations {
int (*domctl) (struct domain *d, int cmd);
int (*sysctl) (int cmd);
int (*readconsole) (uint32_t clear);
- int (*getcpuinfo) (void);
- int (*setpminfo) (void);
- int (*pm_op) (void);
int (*do_mca) (void);
int (*evtchn_unbound) (struct domain *d, struct evtchn *chn, domid_t id2);
@@ -110,7 +107,6 @@ struct xsm_operations {
int (*resource_setup_misc) (void);
int (*page_offline)(uint32_t cmd);
- int (*lockprof)(void);
int (*tmem_op)(void);
int (*tmem_control)(void);
@@ -127,16 +123,8 @@ struct xsm_operations {
int (*mem_event_op) (struct domain *d, int op);
int (*mem_sharing_op) (struct domain *d, struct domain *cd, int op);
int (*apic) (struct domain *d, int cmd);
- int (*xen_settime) (void);
int (*memtype) (uint32_t access);
- int (*microcode) (void);
- int (*platform_quirk) (uint32_t);
int (*platform_op) (uint32_t cmd);
- int (*firmware_info) (void);
- int (*efi_call) (void);
- int (*acpi_sleep) (void);
- int (*change_freq) (void);
- int (*getidletime) (void);
int (*machine_memory_map) (void);
int (*domain_memory_map) (struct domain *d);
#define XSM_MMU_UPDATE_READ 1
@@ -197,21 +185,6 @@ static inline int xsm_readconsole (uint32_t clear)
return xsm_ops->readconsole(clear);
}
-static inline int xsm_getcpuinfo(void)
-{
- return xsm_ops->getcpuinfo();
-}
-
-static inline int xsm_setpminfo(void)
-{
- return xsm_ops->setpminfo();
-}
-
-static inline int xsm_pm_op(void)
-{
- return xsm_ops->pm_op();
-}
-
static inline int xsm_do_mca(void)
{
return xsm_ops->do_mca();
@@ -458,11 +431,6 @@ static inline int xsm_page_offline(uint32_t cmd)
return xsm_ops->page_offline(cmd);
}
-static inline int xsm_lockprof(void)
-{
- return xsm_ops->lockprof();
-}
-
static inline int xsm_tmem_op(void)
{
return xsm_ops->tmem_op();
@@ -529,56 +497,16 @@ static inline int xsm_apic (struct domain *d, int cmd)
return xsm_ops->apic(d, cmd);
}
-static inline int xsm_xen_settime (void)
-{
- return xsm_ops->xen_settime();
-}
-
static inline int xsm_memtype (uint32_t access)
{
return xsm_ops->memtype(access);
}
-static inline int xsm_microcode (void)
-{
- return xsm_ops->microcode();
-}
-
-static inline int xsm_platform_quirk (uint32_t quirk)
-{
- return xsm_ops->platform_quirk(quirk);
-}
-
static inline int xsm_platform_op (uint32_t op)
{
return xsm_ops->platform_op(op);
}
-static inline int xsm_firmware_info (void)
-{
- return xsm_ops->firmware_info();
-}
-
-static inline int xsm_efi_call (void)
-{
- return xsm_ops->efi_call();
-}
-
-static inline int xsm_acpi_sleep (void)
-{
- return xsm_ops->acpi_sleep();
-}
-
-static inline int xsm_change_freq (void)
-{
- return xsm_ops->change_freq();
-}
-
-static inline int xsm_getidletime (void)
-{
- return xsm_ops->getidletime();
-}
-
static inline int xsm_machine_memory_map(void)
{
return xsm_ops->machine_memory_map();
diff --git a/xen/xsm/dummy.c b/xen/xsm/dummy.c
index 0216b62..22c66e5 100644
--- a/xen/xsm/dummy.c
+++ b/xen/xsm/dummy.c
@@ -36,9 +36,6 @@ void xsm_fixup_ops (struct xsm_operations *ops)
set_to_dummy_if_null(ops, domctl);
set_to_dummy_if_null(ops, sysctl);
set_to_dummy_if_null(ops, readconsole);
- set_to_dummy_if_null(ops, getcpuinfo);
- set_to_dummy_if_null(ops, setpminfo);
- set_to_dummy_if_null(ops, pm_op);
set_to_dummy_if_null(ops, do_mca);
set_to_dummy_if_null(ops, evtchn_unbound);
@@ -97,7 +94,6 @@ void xsm_fixup_ops (struct xsm_operations *ops)
set_to_dummy_if_null(ops, resource_setup_misc);
set_to_dummy_if_null(ops, page_offline);
- set_to_dummy_if_null(ops, lockprof);
set_to_dummy_if_null(ops, tmem_op);
set_to_dummy_if_null(ops, tmem_control);
@@ -114,16 +110,7 @@ void xsm_fixup_ops (struct xsm_operations *ops)
set_to_dummy_if_null(ops, mem_event_op);
set_to_dummy_if_null(ops, mem_sharing_op);
set_to_dummy_if_null(ops, apic);
- set_to_dummy_if_null(ops, xen_settime);
- set_to_dummy_if_null(ops, memtype);
- set_to_dummy_if_null(ops, microcode);
- set_to_dummy_if_null(ops, platform_quirk);
set_to_dummy_if_null(ops, platform_op);
- set_to_dummy_if_null(ops, firmware_info);
- set_to_dummy_if_null(ops, efi_call);
- set_to_dummy_if_null(ops, acpi_sleep);
- set_to_dummy_if_null(ops, change_freq);
- set_to_dummy_if_null(ops, getidletime);
set_to_dummy_if_null(ops, machine_memory_map);
set_to_dummy_if_null(ops, domain_memory_map);
set_to_dummy_if_null(ops, mmu_update);
diff --git a/xen/xsm/flask/hooks.c b/xen/xsm/flask/hooks.c
index d72a807..03ea675 100644
--- a/xen/xsm/flask/hooks.c
+++ b/xen/xsm/flask/hooks.c
@@ -1186,64 +1186,51 @@ static int flask_apic(struct domain *d, int cmd)
return domain_has_xen(d, perm);
}
-static int flask_xen_settime(void)
-{
- return domain_has_xen(current->domain, XEN__SETTIME);
-}
-
-static int flask_memtype(uint32_t access)
-{
- u32 perm;
-
- switch ( access )
- {
- case XENPF_add_memtype:
- perm = XEN__MTRR_ADD;
- break;
- case XENPF_del_memtype:
- perm = XEN__MTRR_DEL;
- break;
- case XENPF_read_memtype:
- perm = XEN__MTRR_READ;
- break;
- default:
- return -EPERM;
- }
-
- return domain_has_xen(current->domain, perm);
-}
-
-static int flask_microcode(void)
-{
- return domain_has_xen(current->domain, XEN__MICROCODE);
-}
-
-static int flask_platform_quirk(uint32_t quirk)
-{
- return avc_current_has_perm(SECINITSID_XEN, SECCLASS_XEN, XEN__QUIRK,
NULL);
-}
-
static int flask_platform_op(uint32_t op)
{
switch ( op )
{
+#ifdef CONFIG_X86
+ /* These operations have their own XSM hooks */
+ case XENPF_cpu_online:
+ case XENPF_cpu_offline:
+ case XENPF_cpu_hotadd:
+ case XENPF_mem_hotadd:
+ return 0;
+#endif
+
case XENPF_settime:
+ return domain_has_xen(current->domain, XEN__SETTIME);
+
case XENPF_add_memtype:
+ return domain_has_xen(current->domain, XEN__MTRR_ADD);
+
case XENPF_del_memtype:
+ return domain_has_xen(current->domain, XEN__MTRR_DEL);
+
case XENPF_read_memtype:
+ return domain_has_xen(current->domain, XEN__MTRR_READ);
+
case XENPF_microcode_update:
+ return domain_has_xen(current->domain, XEN__MICROCODE);
+
case XENPF_platform_quirk:
+ return domain_has_xen(current->domain, XEN__QUIRK);
+
case XENPF_firmware_info:
+ return domain_has_xen(current->domain, XEN__FIRMWARE);
+
case XENPF_efi_runtime_call:
+ return domain_has_xen(current->domain, XEN__FIRMWARE);
+
case XENPF_enter_acpi_sleep:
+ return domain_has_xen(current->domain, XEN__SLEEP);
+
case XENPF_change_freq:
+ return domain_has_xen(current->domain, XEN__FREQUENCY);
+
case XENPF_getidletime:
- case XENPF_cpu_online:
- case XENPF_cpu_offline:
- case XENPF_cpu_hotadd:
- case XENPF_mem_hotadd:
- /* These operations have their own XSM hooks */
- return 0;
+ return domain_has_xen(current->domain, XEN__GETIDLE);
case XENPF_set_processor_pminfo:
case XENPF_core_parking:
@@ -1259,31 +1246,6 @@ static int flask_platform_op(uint32_t op)
}
}
-static int flask_firmware_info(void)
-{
- return domain_has_xen(current->domain, XEN__FIRMWARE);
-}
-
-static int flask_efi_call(void)
-{
- return domain_has_xen(current->domain, XEN__FIRMWARE);
-}
-
-static int flask_acpi_sleep(void)
-{
- return domain_has_xen(current->domain, XEN__SLEEP);
-}
-
-static int flask_change_freq(void)
-{
- return domain_has_xen(current->domain, XEN__FREQUENCY);
-}
-
-static int flask_getidletime(void)
-{
- return domain_has_xen(current->domain, XEN__GETIDLE);
-}
-
static int flask_machine_memory_map(void)
{
return avc_current_has_perm(SECINITSID_XEN, SECCLASS_MMU, MMU__MEMORYMAP,
NULL);
@@ -1519,16 +1481,7 @@ static struct xsm_operations flask_ops = {
.mem_event_op = flask_mem_event_op,
.mem_sharing_op = flask_mem_sharing_op,
.apic = flask_apic,
- .xen_settime = flask_xen_settime,
- .memtype = flask_memtype,
- .microcode = flask_microcode,
- .platform_quirk = flask_platform_quirk,
.platform_op = flask_platform_op,
- .firmware_info = flask_firmware_info,
- .efi_call = flask_efi_call,
- .acpi_sleep = flask_acpi_sleep,
- .change_freq = flask_change_freq,
- .getidletime = flask_getidletime,
.machine_memory_map = flask_machine_memory_map,
.domain_memory_map = flask_domain_memory_map,
.mmu_update = flask_mmu_update,
--
1.7.11.7
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