search for: gpgd

...ockevent(cpu, args->arg1); break; diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index ac8a4a3..514a6c0 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -18,7 +18,7 @@ int init_pagetables(struct page **switcher_page, unsigned int pages); struct pgdir { - unsigned long gpgdir; + pgd_t *gpgdir; pgd_t *pgdir; }; @@ -137,6 +137,8 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user); * in the kernel. */ #define pgd_flags(x) (pgd_val(x) & ~PAGE_MASK) #define pgd_pfn(x) (pgd_val(x) >> PAGE_SHIFT) +#define pmd_flags(x) (pmd_val(x) & ~PAG...

...ockevent(cpu, args->arg1); break; diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index ac8a4a3..514a6c0 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -18,7 +18,7 @@ int init_pagetables(struct page **switcher_page, unsigned int pages); struct pgdir { - unsigned long gpgdir; + pgd_t *gpgdir; pgd_t *pgdir; }; @@ -137,6 +137,8 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user); * in the kernel. */ #define pgd_flags(x) (pgd_val(x) & ~PAGE_MASK) #define pgd_pfn(x) (pgd_val(x) >> PAGE_SHIFT) +#define pmd_flags(x) (pmd_val(x) & ~PAG...

...ts_and_traps.c: */ void maybe_do_interrupt(struct lg_cpu *cpu); @@ -169,6 +171,9 @@ int init_guest_pagetable(struct lguest *lg); void free_guest_pagetable(struct lguest *lg); void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable); void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 i); +#ifdef CONFIG_X86_PAE +void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 i); +#endif void guest_pagetable_clear_all(struct lg_cpu *cpu); void guest_pagetable_flush_user(struct lg_cpu *cpu); void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir, diff --git a/driver...

...ts_and_traps.c: */ void maybe_do_interrupt(struct lg_cpu *cpu); @@ -169,6 +171,9 @@ int init_guest_pagetable(struct lguest *lg); void free_guest_pagetable(struct lguest *lg); void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable); void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 i); +#ifdef CONFIG_X86_PAE +void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 i); +#endif void guest_pagetable_clear_all(struct lg_cpu *cpu); void guest_pagetable_flush_user(struct lg_cpu *cpu); void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir, diff --git a/driver...

...==================== --- linux-2.6.21-rc5-mm2.orig/drivers/lguest/page_tables.c +++ linux-2.6.21-rc5-mm2/drivers/lguest/page_tables.c @@ -105,6 +105,25 @@ static spte_t gpte_to_spte(struct lguest return spte; } +unsigned long lguest_find_guest_paddr(struct lguest *lg, unsigned long vaddr) +{ + gpgd_t gpgd; + gpte_t gpte; + unsigned long gpte_ptr; + + gpgd = mkgpgd(lgread_u32(lg, gpgd_addr(lg, vaddr))); + if (!(gpgd.flags & _PAGE_PRESENT)) + return -1; + + gpte_ptr = gpte_addr(lg, gpgd, vaddr); + gpte = mkgpte(lgread_u32(lg, gpte_ptr)); + + if (!(gpte.flags & _PAGE_PRESENT)) + return...

...==================== --- linux-2.6.21-rc5-mm2.orig/drivers/lguest/page_tables.c +++ linux-2.6.21-rc5-mm2/drivers/lguest/page_tables.c @@ -105,6 +105,25 @@ static spte_t gpte_to_spte(struct lguest return spte; } +unsigned long lguest_find_guest_paddr(struct lguest *lg, unsigned long vaddr) +{ + gpgd_t gpgd; + gpte_t gpte; + unsigned long gpte_ptr; + + gpgd = mkgpgd(lgread_u32(lg, gpgd_addr(lg, vaddr))); + if (!(gpgd.flags & _PAGE_PRESENT)) + return -1; + + gpte_ptr = gpte_addr(lg, gpgd, vaddr); + gpte = mkgpte(lgread_u32(lg, gpte_ptr)); + + if (!(gpte.flags & _PAGE_PRESENT)) + return...

...nion { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} spgd_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} spte_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} gpgd_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} gpte_t; +#define mkgpte(_val) ((gpte_t){.raw.val = _val}) +#define mkgpgd(_val) ((gpgd_t){.raw.val = _val}) + +struct pgdir +{ + unsigned long cr3; + spgd_t *pgdir; +}; + +/* This is a guest-specifi...

...nion { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} spgd_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} spte_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} gpgd_t; +typedef union { + struct { unsigned flags:12, pfn:20; }; + struct { unsigned long val; } raw; +} gpte_t; +#define mkgpte(_val) ((gpte_t){.raw.val = _val}) +#define mkgpgd(_val) ((gpgd_t){.raw.val = _val}) + +struct pgdir +{ + unsigned long cr3; + spgd_t *pgdir; +}; + +/* This is a guest-specifi...

...est *info, unsigned long cr2, int errcode); void pin_page(struct lguest *lg, unsigned long vaddr); /* lguest_user.c: */ =================================================================== --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -109,7 +109,7 @@ static void check_gpgd(struct lguest *lg /* We fault pages in, which allows us to update accessed/dirty bits. * Return true if we got page. */ -int demand_page(struct lguest *lg, unsigned long vaddr, int write) +int demand_page(struct lguest *lg, unsigned long vaddr, int errcode) { gpgd_t gpgd; spgd_t *spgd; @@...

...est *info, unsigned long cr2, int errcode); void pin_page(struct lguest *lg, unsigned long vaddr); /* lguest_user.c: */ =================================================================== --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -109,7 +109,7 @@ static void check_gpgd(struct lguest *lg /* We fault pages in, which allows us to update accessed/dirty bits. * Return true if we got page. */ -int demand_page(struct lguest *lg, unsigned long vaddr, int write) +int demand_page(struct lguest *lg, unsigned long vaddr, int errcode) { gpgd_t gpgd; spgd_t *spgd; @@...

Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the way. Well, the lguest64 port is still not ready to display, but before Rusty makes too many changes I would like this in upstream so I don't have to keep repeating my changes :-) So this patch series moves lguest32 out of the way for other archs. -- Steve

Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the way. Well, the lguest64 port is still not ready to display, but before Rusty makes too many changes I would like this in upstream so I don't have to keep repeating my changes :-) So this patch series moves lguest32 out of the way for other archs. -- Steve

[ Changes since last version. - Move lg.h to include/asm instead (suggested by Rusty Russel) - All steps of the series compiles (suggested by Stephen Rothwell) - Better ifdef header naming (suggested by Stephen Rothwell) - Added Andi Kleen to CC (forgot to on V1) ] Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the

[ Changes since last version. - Move lg.h to include/asm instead (suggested by Rusty Russel) - All steps of the series compiles (suggested by Stephen Rothwell) - Better ifdef header naming (suggested by Stephen Rothwell) - Added Andi Kleen to CC (forgot to on V1) ] Hi all, I've been working on lguest64 and in order to do this, I had to move a lot of the i386 specific out of the

Hi all, These are the patches I'm planning to submit for 2.6.24. Comments gratefully accepted. Along with the usual cleanups and improvements are Jes' de-i386-ification patches, and a new "virtio" mechanism designed to be shared with KVM (and hopefully other hypervisors). Cheers, Rusty. Documentation/lguest/Makefile | 30 Documentation/lguest/lguest.c

Hi all, These are the patches I'm planning to submit for 2.6.24. Comments gratefully accepted. Along with the usual cleanups and improvements are Jes' de-i386-ification patches, and a new "virtio" mechanism designed to be shared with KVM (and hopefully other hypervisors). Cheers, Rusty. Documentation/lguest/Makefile | 30 Documentation/lguest/lguest.c

...accessed/dirty bits. + * Return 0 if failed, 1 if good */ +static int page_in(struct lguest_vcpu *vcpu, u64 vaddr, pgprot_t prot) +{ + struct lguest_guest_info *linfo = vcpu->guest; + struct lguest_pud *pudir; + struct lguest_pmd *pmdir; + struct lguest_pte *ptedir; + u64 val; + u64 paddr; + u64 gpgd, gpud, gpmd, gpte; + u64 flags = pgprot_val(prot); + int write; + int ret; + + gpgd = gtoplev(vcpu, vaddr); + val = lhread_u64(vcpu, gpgd); + if (!(val & _PAGE_PRESENT)) { + printk("pgd not present pgd:%llx vaddr:%llx val:%llx\n", gpgd, vaddr, val); + return 0; + } + + gpud = val &a...

...accessed/dirty bits. + * Return 0 if failed, 1 if good */ +static int page_in(struct lguest_vcpu *vcpu, u64 vaddr, pgprot_t prot) +{ + struct lguest_guest_info *linfo = vcpu->guest; + struct lguest_pud *pudir; + struct lguest_pmd *pmdir; + struct lguest_pte *ptedir; + u64 val; + u64 paddr; + u64 gpgd, gpud, gpmd, gpte; + u64 flags = pgprot_val(prot); + int write; + int ret; + + gpgd = gtoplev(vcpu, vaddr); + val = lhread_u64(vcpu, gpgd); + if (!(val & _PAGE_PRESENT)) { + printk("pgd not present pgd:%llx vaddr:%llx val:%llx\n", gpgd, vaddr, val); + return 0; + } + + gpud = val &a...