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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 10/22] mini-os: make p2m related code depend on CONFIG_PARAVIRT
Juergen Gross, on Tue 23 Aug 2016 17:15:56 +0200, wrote:
> All handling related to p2m is needed for paravirtualized environment
> only. So put all functions operating on p2m list in #ifdef
> CONFIG_PARAVIRT sections. Add a paravirt.h header defining dummy
> functions for non-paravirtualized environments. Instead of using
> references to start_info use dedicated variables initialized from
> start_info on boot.
>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
> ---
> arch/arm/balloon.c | 5 ---
> arch/arm/mm.c | 4 ---
> arch/x86/balloon.c | 13 ++++++++
> arch/x86/mm.c | 67
> +++++++++++++++++++++++++++++----------
> arch/x86/setup.c | 6 ++--
> arch/x86/traps.c | 6 ++--
> balloon.c | 1 +
> include/arm/arch_mm.h | 3 --
> include/balloon.h | 3 --
> include/mm.h | 2 +-
> include/paravirt.h | 48 ++++++++++++++++++++++++++++
> include/x86/arch_mm.h | 40 +++++------------------
> include/xen/arch-x86/xen-x86_32.h | 2 ++
> include/xen/arch-x86/xen-x86_64.h | 2 ++
> mm.c | 1 +
> 15 files changed, 133 insertions(+), 70 deletions(-)
>
> diff --git a/arch/arm/balloon.c b/arch/arm/balloon.c
> index 7f35328..958ecba 100644
> --- a/arch/arm/balloon.c
> +++ b/arch/arm/balloon.c
> @@ -27,11 +27,6 @@
>
> unsigned long virt_kernel_area_end; /* TODO: find a virtual area */
>
> -int arch_expand_p2m(unsigned long max_pfn)
> -{
> - return 0;
> -}
> -
> void arch_pfn_add(unsigned long pfn, unsigned long mfn)
> {
> }
> diff --git a/arch/arm/mm.c b/arch/arm/mm.c
> index fc8d4bc..4f58fc7 100644
> --- a/arch/arm/mm.c
> +++ b/arch/arm/mm.c
> @@ -72,10 +72,6 @@ void arch_init_mm(unsigned long *start_pfn_p, unsigned
> long *max_pfn_p)
> *max_pfn_p = to_phys(new_device_tree) >> PAGE_SHIFT;
> }
>
> -void arch_init_p2m(unsigned long max_pfn)
> -{
> -}
> -
> void arch_init_demand_mapping_area(void)
> {
> }
> diff --git a/arch/x86/balloon.c b/arch/x86/balloon.c
> index 42389e4..16aaae4 100644
> --- a/arch/x86/balloon.c
> +++ b/arch/x86/balloon.c
> @@ -26,11 +26,13 @@
> #include <mini-os/errno.h>
> #include <mini-os/lib.h>
> #include <mini-os/mm.h>
> +#include <mini-os/paravirt.h>
>
> #ifdef CONFIG_BALLOON
>
> unsigned long virt_kernel_area_end = VIRT_KERNEL_AREA;
>
> +#ifdef CONFIG_PARAVIRT
> static void p2m_invalidate(unsigned long *list, unsigned long start_idx)
> {
> unsigned long idx;
> @@ -143,5 +145,16 @@ void arch_pfn_add(unsigned long pfn, unsigned long mfn)
> do_exit();
> }
> }
> +#else
> +void arch_pfn_add(unsigned long pfn, unsigned long mfn)
> +{
> + pgentry_t *pgt;
> +
> + pgt = need_pgt((unsigned long)pfn_to_virt(pfn));
> + ASSERT(pgt);
> + if ( !(*pgt & _PAGE_PSE) )
> + *pgt = (pgentry_t)(mfn << PAGE_SHIFT) | _PAGE_PRESENT | _PAGE_RW;
> +}
> +#endif
>
> #endif
> diff --git a/arch/x86/mm.c b/arch/x86/mm.c
> index fe18f53..0543017 100644
> --- a/arch/x86/mm.c
> +++ b/arch/x86/mm.c
> @@ -39,6 +39,7 @@
> #include <mini-os/hypervisor.h>
> #include <mini-os/balloon.h>
> #include <mini-os/mm.h>
> +#include <mini-os/paravirt.h>
> #include <mini-os/types.h>
> #include <mini-os/lib.h>
> #include <mini-os/xmalloc.h>
> @@ -53,10 +54,24 @@
>
> unsigned long *phys_to_machine_mapping;
> unsigned long mfn_zero;
> +pgentry_t *pt_base;
> +static unsigned long first_free_pfn;
> +static unsigned long last_free_pfn;
> +
> extern char stack[];
> extern void page_walk(unsigned long va);
>
> -#ifndef CONFIG_PARAVIRT
> +#ifdef CONFIG_PARAVIRT
> +void arch_mm_preinit(void *p)
> +{
> + start_info_t *si = p;
> +
> + phys_to_machine_mapping = (unsigned long *)si->mfn_list;
> + pt_base = (pgentry_t *)si->pt_base;
> + first_free_pfn = PFN_UP(to_phys(pt_base)) + si->nr_pt_frames;
> + last_free_pfn = si->nr_pages;
> +}
> +#else
> #include <mini-os/desc.h>
> user_desc gdt[NR_GDT_ENTRIES] =
> {
> @@ -85,6 +100,22 @@ desc_ptr idt_ptr =
> .limit = sizeof(idt) - 1,
> .base = (unsigned long)&idt,
> };
> +
> +void arch_mm_preinit(void *p)
> +{
> + long ret;
> + domid_t domid = DOMID_SELF;
> +
> + pt_base = page_table_base;
> + first_free_pfn = PFN_UP(to_phys(&_end));
> + ret = HYPERVISOR_memory_op(XENMEM_current_reservation, &domid);
> + if ( ret < 0 )
> + {
> + xprintk("could not get memory size\n");
> + do_exit();
> + }
> + last_free_pfn = ret;
> +}
> #endif
>
> /*
> @@ -95,7 +126,7 @@ desc_ptr idt_ptr =
> static void new_pt_frame(unsigned long *pt_pfn, unsigned long prev_l_mfn,
> unsigned long offset, unsigned long level)
> {
> - pgentry_t *tab = (pgentry_t *)start_info.pt_base;
> + pgentry_t *tab = pt_base;
> unsigned long pt_page = (unsigned long)pfn_to_virt(*pt_pfn);
> pgentry_t prot_e, prot_t;
> mmu_update_t mmu_updates[1];
> @@ -172,8 +203,8 @@ static void build_pagetable(unsigned long *start_pfn,
> unsigned long *max_pfn)
> unsigned long start_address, end_address;
> unsigned long pfn_to_map, pt_pfn = *start_pfn;
> static mmu_update_t mmu_updates[L1_PAGETABLE_ENTRIES + 1];
> - pgentry_t *tab = (pgentry_t *)start_info.pt_base, page;
> - unsigned long pt_mfn = pfn_to_mfn(virt_to_pfn(start_info.pt_base));
> + pgentry_t *tab = pt_base, page;
> + unsigned long pt_mfn = pfn_to_mfn(virt_to_pfn(pt_base));
> unsigned long offset;
> int count = 0;
> int rc;
> @@ -182,6 +213,7 @@ static void build_pagetable(unsigned long *start_pfn,
> unsigned long *max_pfn)
> mapped, start the loop at the very beginning. */
> pfn_to_map = *start_pfn;
>
> +#ifdef CONFIG_PARAVIRT
> if ( *max_pfn >= virt_to_pfn(HYPERVISOR_VIRT_START) )
> {
> printk("WARNING: Mini-OS trying to use Xen virtual space. "
> @@ -193,6 +225,7 @@ static void build_pagetable(unsigned long *start_pfn,
> unsigned long *max_pfn)
> ((unsigned long)pfn_to_virt(*max_pfn) -
> (unsigned long)&_text)>>20);
> }
> +#endif
>
> start_address = (unsigned long)pfn_to_virt(pfn_to_map);
> end_address = (unsigned long)pfn_to_virt(*max_pfn);
> @@ -202,8 +235,8 @@ static void build_pagetable(unsigned long *start_pfn,
> unsigned long *max_pfn)
>
> while ( start_address < end_address )
> {
> - tab = (pgentry_t *)start_info.pt_base;
> - pt_mfn = pfn_to_mfn(virt_to_pfn(start_info.pt_base));
> + tab = pt_base;
> + pt_mfn = pfn_to_mfn(virt_to_pfn(pt_base));
>
> #if defined(__x86_64__)
> offset = l4_table_offset(start_address);
> @@ -270,8 +303,8 @@ static void set_readonly(void *text, void *etext)
> ((unsigned long) text + PAGE_SIZE - 1) & PAGE_MASK;
> unsigned long end_address = (unsigned long) etext;
> static mmu_update_t mmu_updates[L1_PAGETABLE_ENTRIES + 1];
> - pgentry_t *tab = (pgentry_t *)start_info.pt_base, page;
> - unsigned long mfn = pfn_to_mfn(virt_to_pfn(start_info.pt_base));
> + pgentry_t *tab = pt_base, page;
> + unsigned long mfn = pfn_to_mfn(virt_to_pfn(pt_base));
> unsigned long offset;
> int count = 0;
> int rc;
> @@ -280,8 +313,8 @@ static void set_readonly(void *text, void *etext)
>
> while ( start_address + PAGE_SIZE <= end_address )
> {
> - tab = (pgentry_t *)start_info.pt_base;
> - mfn = pfn_to_mfn(virt_to_pfn(start_info.pt_base));
> + tab = pt_base;
> + mfn = pfn_to_mfn(virt_to_pfn(pt_base));
>
> #if defined(__x86_64__)
> offset = l4_table_offset(start_address);
> @@ -343,8 +376,8 @@ static pgentry_t *get_pgt(unsigned long va)
> pgentry_t *tab;
> unsigned offset;
>
> - tab = (pgentry_t *)start_info.pt_base;
> - mfn = virt_to_mfn(start_info.pt_base);
> + tab = pt_base;
> + mfn = virt_to_mfn(pt_base);
>
> #if defined(__x86_64__)
> offset = l4_table_offset(va);
> @@ -379,8 +412,8 @@ pgentry_t *need_pgt(unsigned long va)
> unsigned long pt_pfn;
> unsigned offset;
>
> - tab = (pgentry_t *)start_info.pt_base;
> - pt_mfn = virt_to_mfn(start_info.pt_base);
> + tab = pt_base;
> + pt_mfn = virt_to_mfn(pt_base);
>
> #if defined(__x86_64__)
> offset = l4_table_offset(va);
> @@ -639,6 +672,7 @@ static void clear_bootstrap(void)
> printk("Unable to unmap NULL page. rc=%d\n", rc);
> }
>
> +#ifdef CONFIG_PARAVIRT
> void p2m_chk_pfn(unsigned long pfn)
> {
> if ( (pfn >> L3_P2M_SHIFT) > 0 )
> @@ -670,6 +704,7 @@ void arch_init_p2m(unsigned long max_pfn)
>
> arch_remap_p2m(max_pfn);
> }
> +#endif
>
> void arch_init_mm(unsigned long* start_pfn_p, unsigned long* max_pfn_p)
> {
> @@ -683,8 +718,8 @@ void arch_init_mm(unsigned long* start_pfn_p, unsigned
> long* max_pfn_p)
> printk(" _end: %p(VA)\n", &_end);
>
> /* First page follows page table pages. */
> - start_pfn = PFN_UP(to_phys(start_info.pt_base)) +
> start_info.nr_pt_frames;
> - max_pfn = start_info.nr_pages;
> + start_pfn = first_free_pfn;
> + max_pfn = last_free_pfn;
>
> if ( max_pfn >= MAX_MEM_SIZE / PAGE_SIZE )
> max_pfn = MAX_MEM_SIZE / PAGE_SIZE - 1;
> diff --git a/arch/x86/setup.c b/arch/x86/setup.c
> index efecefb..8b6bb6e 100644
> --- a/arch/x86/setup.c
> +++ b/arch/x86/setup.c
> @@ -131,6 +131,9 @@ arch_init(void *par)
> /* Initialize SSE */
> sse_init();
>
> + /* Setup memory management info from start_info. */
> + arch_mm_preinit(par);
> +
> /* Copy the start_info struct to a globally-accessible area. */
> /* WARN: don't do printk before here, it uses information from
> shared_info. Use xprintk instead. */
> @@ -152,9 +155,6 @@ arch_init(void *par)
> si->cmd_line ? (const char *)si->cmd_line : "NULL");
> printk(" stack: %p-%p\n", stack, stack + sizeof(stack));
>
> - /* set up minimal memory infos */
> - phys_to_machine_mapping = (unsigned long *)start_info.mfn_list;
> -
> /* Grab the shared_info pointer and put it in a safe place. */
> HYPERVISOR_shared_info = map_shared_info(start_info.shared_info);
>
> diff --git a/arch/x86/traps.c b/arch/x86/traps.c
> index 0b3d85b..2d3222d 100644
> --- a/arch/x86/traps.c
> +++ b/arch/x86/traps.c
> @@ -97,9 +97,9 @@ DO_ERROR(18, "machine check", machine_check)
>
> void page_walk(unsigned long virt_address)
> {
> - pgentry_t *tab = (pgentry_t *)start_info.pt_base, page;
> + pgentry_t *tab = pt_base, page;
> unsigned long addr = virt_address;
> - printk("Pagetable walk from virt %lx, base %lx:\n", virt_address,
> start_info.pt_base);
> + printk("Pagetable walk from virt %lx, base %p:\n", virt_address,
> pt_base);
>
> #if defined(__x86_64__)
> page = tab[l4_table_offset(addr)];
> @@ -119,7 +119,7 @@ void page_walk(unsigned long virt_address)
> }
>
> static int handle_cow(unsigned long addr) {
> - pgentry_t *tab = (pgentry_t *)start_info.pt_base, page;
> + pgentry_t *tab = pt_base, page;
> unsigned long new_page;
> int rc;
>
> diff --git a/balloon.c b/balloon.c
> index 608492a..8d2f151 100644
> --- a/balloon.c
> +++ b/balloon.c
> @@ -25,6 +25,7 @@
> #include <mini-os/balloon.h>
> #include <mini-os/errno.h>
> #include <mini-os/lib.h>
> +#include <mini-os/paravirt.h>
> #include <xen/xen.h>
> #include <xen/memory.h>
>
> diff --git a/include/arm/arch_mm.h b/include/arm/arch_mm.h
> index f4685d8..79d9e05 100644
> --- a/include/arm/arch_mm.h
> +++ b/include/arm/arch_mm.h
> @@ -29,9 +29,6 @@ extern uint32_t physical_address_offset; /* Add this to
> a virtual address to get
> #define mfn_to_virt(_mfn) (to_virt(PFN_PHYS(_mfn)))
> #define pfn_to_virt(_pfn) (to_virt(PFN_PHYS(_pfn)))
>
> -#define mfn_to_pfn(x) (x)
> -#define pfn_to_mfn(x) (x)
> -
> #define virtual_to_mfn(_virt) virt_to_mfn(_virt)
>
> // FIXME
> diff --git a/include/balloon.h b/include/balloon.h
> index d8710ad..8cd41af 100644
> --- a/include/balloon.h
> +++ b/include/balloon.h
> @@ -39,16 +39,13 @@ extern unsigned long nr_mem_pages;
> void get_max_pages(void);
> int balloon_up(unsigned long n_pages);
>
> -void arch_remap_p2m(unsigned long max_pfn);
> void mm_alloc_bitmap_remap(void);
> -int arch_expand_p2m(unsigned long max_pfn);
> void arch_pfn_add(unsigned long pfn, unsigned long mfn);
> int chk_free_pages(unsigned long needed);
>
> #else /* CONFIG_BALLOON */
>
> static inline void get_max_pages(void) { }
> -static inline void arch_remap_p2m(unsigned long max_pfn) { }
> static inline void mm_alloc_bitmap_remap(void) { }
> static inline int chk_free_pages(unsigned long needed)
> {
> diff --git a/include/mm.h b/include/mm.h
> index fc3128b..953570c 100644
> --- a/include/mm.h
> +++ b/include/mm.h
> @@ -36,6 +36,7 @@
> #endif
> #include <xen/xen.h>
>
> +#include <mini-os/paravirt.h>
> #include <mini-os/arch_limits.h>
> #include <mini-os/arch_mm.h>
>
> @@ -67,7 +68,6 @@ static __inline__ int get_order(unsigned long size)
>
> void arch_init_demand_mapping_area(void);
> void arch_init_mm(unsigned long* start_pfn_p, unsigned long* max_pfn_p);
> -void arch_init_p2m(unsigned long max_pfn_p);
>
> unsigned long allocate_ondemand(unsigned long n, unsigned long alignment);
> /* map f[i*stride]+i*increment for i in 0..n-1, aligned on alignment pages */
> diff --git a/include/paravirt.h b/include/paravirt.h
> index 7852e16..15076be 100644
> --- a/include/paravirt.h
> +++ b/include/paravirt.h
> @@ -26,7 +26,55 @@
>
> #if defined(CONFIG_PARAVIRT)
>
> +#define mfn_to_pfn(_mfn) (machine_to_phys_mapping[(_mfn)])
> +#define pfn_to_mfn(_pfn) (phys_to_machine_mapping[(_pfn)])
> +
> +/* for P2M */
> +#ifdef __x86_64__
> +#define P2M_SHIFT 9
> #else
> +#define P2M_SHIFT 10
> +#endif
> +#define P2M_ENTRIES (1UL << P2M_SHIFT)
> +#define P2M_MASK (P2M_ENTRIES - 1)
> +#define L1_P2M_SHIFT P2M_SHIFT
> +#define L2_P2M_SHIFT (2 * P2M_SHIFT)
> +#define L3_P2M_SHIFT (3 * P2M_SHIFT)
> +#define L1_P2M_IDX(pfn) ((pfn) & P2M_MASK)
> +#define L2_P2M_IDX(pfn) (((pfn) >> L1_P2M_SHIFT) & P2M_MASK)
> +#define L3_P2M_IDX(pfn) (((pfn) >> L2_P2M_SHIFT) & P2M_MASK)
> +#define INVALID_P2M_ENTRY (~0UL)
> +
> +void p2m_chk_pfn(unsigned long pfn);
> +
> +static inline unsigned long p2m_pages(unsigned long pages)
> +{
> + return (pages + P2M_ENTRIES - 1) >> L1_P2M_SHIFT;
> +}
> +
> +void arch_init_p2m(unsigned long max_pfn_p);
> +
> +#else
> +
> +#define mfn_to_pfn(_mfn) ((unsigned long)(_mfn))
> +#define pfn_to_mfn(_pfn) ((unsigned long)(_pfn))
> +
> +static inline void arch_init_p2m(unsigned long max_pfn_p) { }
> +
> +#endif
> +
> +#if defined(CONFIG_PARAVIRT) && defined(CONFIG_BALLOON)
> +
> +void arch_remap_p2m(unsigned long max_pfn);
> +int arch_expand_p2m(unsigned long max_pfn);
> +
> +#else
> +
> +static inline void arch_remap_p2m(unsigned long max_pfn) { }
> +static inline int arch_expand_p2m(unsigned long max_pfn)
> +{
> + return 0;
> +}
>
> #endif
>
> diff --git a/include/x86/arch_mm.h b/include/x86/arch_mm.h
> index 2b18b34..28ab406 100644
> --- a/include/x86/arch_mm.h
> +++ b/include/x86/arch_mm.h
> @@ -184,31 +184,6 @@ typedef unsigned long pgentry_t;
> #define IO_PROT (L1_PROT)
> #define IO_PROT_NOCACHE (L1_PROT | _PAGE_PCD)
>
> -/* for P2M */
> -#ifdef __x86_64__
> -#define P2M_SHIFT 9
> -#else
> -#define P2M_SHIFT 10
> -#endif
> -#define P2M_ENTRIES (1UL << P2M_SHIFT)
> -#define P2M_MASK (P2M_ENTRIES - 1)
> -#define L1_P2M_SHIFT P2M_SHIFT
> -#define L2_P2M_SHIFT (2 * P2M_SHIFT)
> -#define L3_P2M_SHIFT (3 * P2M_SHIFT)
> -#define L1_P2M_IDX(pfn) ((pfn) & P2M_MASK)
> -#define L2_P2M_IDX(pfn) (((pfn) >> L1_P2M_SHIFT) & P2M_MASK)
> -#define L3_P2M_IDX(pfn) (((pfn) >> L2_P2M_SHIFT) & P2M_MASK)
> -#define INVALID_P2M_ENTRY (~0UL)
> -
> -#ifndef __ASSEMBLY__
> -void p2m_chk_pfn(unsigned long pfn);
> -
> -static inline unsigned long p2m_pages(unsigned long pages)
> -{
> - return (pages + P2M_ENTRIES - 1) >> L1_P2M_SHIFT;
> -}
> -#endif
> -
> #include "arch_limits.h"
> #define PAGE_SIZE __PAGE_SIZE
> #define PAGE_SHIFT __PAGE_SHIFT
> @@ -232,10 +207,14 @@ typedef unsigned long paddr_t;
> typedef unsigned long maddr_t;
> #endif
>
> +extern pgentry_t *pt_base;
> +#ifdef CONFIG_PARAVIRT
> extern unsigned long *phys_to_machine_mapping;
> +#else
> +extern pgentry_t page_table_base[];
> +#endif
> extern char _text, _etext, _erodata, _edata, _end;
> extern unsigned long mfn_zero;
> -#define pfn_to_mfn(_pfn) (phys_to_machine_mapping[(_pfn)])
> static __inline__ maddr_t phys_to_machine(paddr_t phys)
> {
> maddr_t machine = pfn_to_mfn(phys >> PAGE_SHIFT);
> @@ -243,7 +222,6 @@ static __inline__ maddr_t phys_to_machine(paddr_t phys)
> return machine;
> }
>
> -#define mfn_to_pfn(_mfn) (machine_to_phys_mapping[(_mfn)])
> static __inline__ paddr_t machine_to_phys(maddr_t machine)
> {
> paddr_t phys = mfn_to_pfn(machine >> PAGE_SHIFT);
> @@ -267,13 +245,10 @@ static __inline__ paddr_t machine_to_phys(maddr_t
> machine)
> #define pte_to_mfn(_pte) (((_pte) & (PADDR_MASK&PAGE_MASK)) >>
> L1_PAGETABLE_SHIFT)
> #define pte_to_virt(_pte) to_virt(mfn_to_pfn(pte_to_mfn(_pte)) <<
> PAGE_SHIFT)
>
> -
> -#define PT_BASE ((pgentry_t *)start_info.pt_base)
> -
> #ifdef __x86_64__
> -#define virtual_to_l3(_virt) ((pgentry_t
> *)pte_to_virt(PT_BASE[l4_table_offset(_virt)]))
> +#define virtual_to_l3(_virt) ((pgentry_t
> *)pte_to_virt(pt_base[l4_table_offset(_virt)]))
> #else
> -#define virtual_to_l3(_virt) PT_BASE
> +#define virtual_to_l3(_virt) pt_base
> #endif
>
> #define virtual_to_l2(_virt) ({ \
> @@ -297,6 +272,7 @@ static __inline__ paddr_t machine_to_phys(maddr_t machine)
> #define do_map_zero(start, n) do_map_frames(start, &mfn_zero, n, 0, 0,
> DOMID_SELF, NULL, L1_PROT_RO)
>
> pgentry_t *need_pgt(unsigned long addr);
> +void arch_mm_preinit(void *p);
>
> #endif
>
> diff --git a/include/xen/arch-x86/xen-x86_32.h
> b/include/xen/arch-x86/xen-x86_32.h
> index 1504191..6339727 100644
> --- a/include/xen/arch-x86/xen-x86_32.h
> +++ b/include/xen/arch-x86/xen-x86_32.h
> @@ -55,6 +55,7 @@
> #define FLAT_USER_DS FLAT_RING3_DS
> #define FLAT_USER_SS FLAT_RING3_SS
>
> +#ifdef CONFIG_PARAVIRT
> #define __HYPERVISOR_VIRT_START_PAE 0xF5800000
> #define __MACH2PHYS_VIRT_START_PAE 0xF5800000
> #define __MACH2PHYS_VIRT_END_PAE 0xF6800000
> @@ -90,6 +91,7 @@
> #ifndef machine_to_phys_mapping
> #define machine_to_phys_mapping ((unsigned long *)MACH2PHYS_VIRT_START)
> #endif
> +#endif
>
> /* 32-/64-bit invariability for control interfaces (domctl/sysctl). */
> #if defined(__XEN__) || defined(__XEN_TOOLS__)
> diff --git a/include/xen/arch-x86/xen-x86_64.h
> b/include/xen/arch-x86/xen-x86_64.h
> index 1c4e159..2c00111 100644
> --- a/include/xen/arch-x86/xen-x86_64.h
> +++ b/include/xen/arch-x86/xen-x86_64.h
> @@ -70,6 +70,7 @@
> #define FLAT_USER_SS32 FLAT_RING3_SS32
> #define FLAT_USER_SS FLAT_USER_SS64
>
> +#ifdef CONFIG_PARAVIRT
> #define __HYPERVISOR_VIRT_START 0xFFFF800000000000
> #define __HYPERVISOR_VIRT_END 0xFFFF880000000000
> #define __MACH2PHYS_VIRT_START 0xFFFF800000000000
> @@ -86,6 +87,7 @@
> #ifndef machine_to_phys_mapping
> #define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START)
> #endif
> +#endif
>
> /*
> * int HYPERVISOR_set_segment_base(unsigned int which, unsigned long base)
> diff --git a/mm.c b/mm.c
> index ca0b9be..c76be7f 100644
> --- a/mm.c
> +++ b/mm.c
> @@ -39,6 +39,7 @@
> #include <xen/memory.h>
> #include <mini-os/mm.h>
> #include <mini-os/balloon.h>
> +#include <mini-os/paravirt.h>
> #include <mini-os/types.h>
> #include <mini-os/lib.h>
> #include <mini-os/xmalloc.h>
> --
> 2.6.6
>
--
Samuel
<y> t1 faich
<y> les programmes ils segfaultent jamais quand on veut
-+- #ens-mim en plein débogage -+-
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