search for: _page_nx

...pte) { - return pte_val(pte) & _PAGE_PSE; + return pte_flags(pte) & _PAGE_PSE; } static inline int pte_global(pte_t pte) { - return pte_val(pte) & _PAGE_GLOBAL; + return pte_flags(pte) & _PAGE_GLOBAL; } static inline int pte_exec(pte_t pte) { - return !(pte_val(pte) & _PAGE_NX); + return !(pte_flags(pte) & _PAGE_NX); } static inline int pte_special(pte_t pte) @@ -304,7 +304,7 @@ return __pgprot(preservebits | addbits); } -#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_MASK) +#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK) #define canon_...

...pte) { - return pte_val(pte) & _PAGE_PSE; + return pte_flags(pte) & _PAGE_PSE; } static inline int pte_global(pte_t pte) { - return pte_val(pte) & _PAGE_GLOBAL; + return pte_flags(pte) & _PAGE_GLOBAL; } static inline int pte_exec(pte_t pte) { - return !(pte_val(pte) & _PAGE_NX); + return !(pte_flags(pte) & _PAGE_NX); } static inline int pte_special(pte_t pte) @@ -304,7 +304,7 @@ return __pgprot(preservebits | addbits); } -#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_MASK) +#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK) #define canon_...

...* Allocate the hypercall page memory * virtaddr = osd_page_alloc(1); */ - virtaddr = osd_virtual_alloc_exec(PAGE_SIZE); +#ifdef __x86_64__ + virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC); +#else + virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, + __pgprot(__PAGE_KERNEL & (~_PAGE_NX))); +#endif if (!virtaddr) { DPRINT_ERR(VMBUS, @@ -462,10 +467,10 @@ void hv_synic_init(void *irqarg) Cleanup: if (hv_context.synic_event_page[cpu]) - osd_page_free(hv_context.synic_event_page[cpu], 1); + free_page((unsigned long)hv_context.synic_event_page[cpu]); if (hv_context.s...

...* Allocate the hypercall page memory * virtaddr = osd_page_alloc(1); */ - virtaddr = osd_virtual_alloc_exec(PAGE_SIZE); +#ifdef __x86_64__ + virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC); +#else + virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, + __pgprot(__PAGE_KERNEL & (~_PAGE_NX))); +#endif if (!virtaddr) { DPRINT_ERR(VMBUS, @@ -462,10 +467,10 @@ void hv_synic_init(void *irqarg) Cleanup: if (hv_context.synic_event_page[cpu]) - osd_page_free(hv_context.synic_event_page[cpu], 1); + free_page((unsigned long)hv_context.synic_event_page[cpu]); if (hv_context.s...

...g/hv/hv.c @@ -230,12 +230,7 @@ int hv_init(void) * Allocate the hypercall page memory * virtaddr = osd_page_alloc(1); */ -#ifdef __x86_64__ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC); -#else - virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, - __pgprot(__PAGE_KERNEL & (~_PAGE_NX))); -#endif if (!virtaddr) { DPRINT_ERR(VMBUS, -- 1.5.5.6

...g/hv/hv.c @@ -230,12 +230,7 @@ int hv_init(void) * Allocate the hypercall page memory * virtaddr = osd_page_alloc(1); */ -#ifdef __x86_64__ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC); -#else - virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, - __pgprot(__PAGE_KERNEL & (~_PAGE_NX))); -#endif if (!virtaddr) { DPRINT_ERR(VMBUS, -- 1.5.5.6

.../sev-es.c @@ -422,6 +422,31 @@ int sev_es_setup_ap_jump_table(struct real_mode_header *rmh) return 0; } +int __init sev_es_efi_map_ghcbs(pgd_t *pgd) +{ + struct sev_es_runtime_data *data; + unsigned long address, pflags; + int cpu; + u64 pfn; + + if (!sev_es_active()) + return 0; + + pflags = _PAGE_NX | _PAGE_RW; + + for_each_possible_cpu(cpu) { + data = per_cpu(runtime_data, cpu); + + address = __pa(&data->ghcb_page); + pfn = address >> PAGE_SHIFT; + + if (kernel_map_pages_in_pgd(pgd, pfn, address, 1, pflags)) + return 1; + } + + return 0; +} + static enum es_result vc_handl...

...r. So make sure the per-cpu + * runtime GHCBs used by the kernel are also mapped in the EFI page-table. + */ +int __init sev_es_efi_map_ghcbs(pgd_t *pgd) +{ + struct sev_es_runtime_data *data; + unsigned long address, pflags; + int cpu; + u64 pfn; + + if (!sev_es_active()) + return 0; + + pflags = _PAGE_NX | _PAGE_RW; + + for_each_possible_cpu(cpu) { + data = per_cpu(runtime_data, cpu); + + address = __pa(&data->ghcb_page); + pfn = address >> PAGE_SHIFT; + + if (kernel_map_pages_in_pgd(pgd, pfn, address, 1, pflags)) + return 1; + } + + return 0; +} + static enum es_result vc_handl...

...get confusing. --- xen-unstable//./xen/include/asm-x86/x86_32/page.h 2008-07-17 09:49:27.000000000 -0500 +++ xen-hpage/./xen/include/asm-x86/x86_32/page.h 2008-11-04 08:24:35.000000000 -0600 @@ -115,7 +115,7 @@ extern unsigned int PAGE_HYPERVISOR_NOCA #define BASE_DISALLOW_MASK (0xFFFFF198U & ~_PAGE_NX) #define L1_DISALLOW_MASK (BASE_DISALLOW_MASK | _PAGE_GNTTAB) -#define L2_DISALLOW_MASK (BASE_DISALLOW_MASK) +#define L2_DISALLOW_MASK (BASE_DISALLOW_MASK & ~_PAGE_PSE) #define L3_DISALLOW_MASK 0xFFFFF1FEU /* must-be-zero */ #endif /* __X86_32_PAGE_H__ */ --- xen-unstable//./xen/include/...

I am unable to boot Dom0 on my IBM eServer BladeCenter HS20, type 8843, EMT64 blades. I have read reports that Dom0 boots on Opteron boxes, but on my EMT64 blades, it does not. Has anyone else encountered this problem on EMT64 hardware? Here are the errors I am getting: This is on a SLES 9 box, gcc version 3.3.3 (SuSE Linux): kernel (hd0,0)/boot/xen.gz dom0_mem=256000 com2=19200,8n1

...http://xenbits.xensource.com/gitweb?p=osstest.git;a=summary Not pushing. ------------------------------------------------------------ changeset: 23107:9549c04a8384 tag: tip user: Keir Fraser <keir@xen.org> date: Mon Mar 28 13:44:08 2011 +0100 x86: Remove _PAGE_NX defintiion (with implicit use of cpu_has_nx). Most users can use _PAGE_NX_BIT directly. The few genuine users in mm.c can do the cpu_has_nx check more clearly in other ways. Signed-off-by: Keir Fraser <keir@xen.org> changeset: 23106:bbf4b6dd9c32 user...

...; +{ >>> + struct sev_es_runtime_data *data; >>> + unsigned long address, pflags; >>> + int cpu; >>> + u64 pfn; >>> + >>> + if (!sev_es_active()) >>> + return 0; >>> + >>> + pflags = _PAGE_NX | _PAGE_RW; >>> + >>> + for_each_possible_cpu(cpu) { >>> + data = per_cpu(runtime_data, cpu); >>> + >>> + address = __pa(&data->ghcb_page); >>> + pfn = address >> PAGE_SHIFT; >>> + &g...

...#include <linux/bitops.h> -#include <linux/slab.h> -#include "osd.h" - -void *osd_virtual_alloc_exec(unsigned int size) -{ -#ifdef __x86_64__ - return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL_EXEC); -#else - return __vmalloc(size, GFP_KERNEL, - __pgprot(__PAGE_KERNEL & (~_PAGE_NX))); -#endif -} - -/** - * osd_page_alloc() - Allocate pages - * @count: Total number of Kernel pages you want to allocate - * - * Tries to allocate @count number of consecutive free kernel pages. - * And if successful, it will set the pages to 0 before returning. - * If successfull it will ret...

...#include <linux/bitops.h> -#include <linux/slab.h> -#include "osd.h" - -void *osd_virtual_alloc_exec(unsigned int size) -{ -#ifdef __x86_64__ - return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL_EXEC); -#else - return __vmalloc(size, GFP_KERNEL, - __pgprot(__PAGE_KERNEL & (~_PAGE_NX))); -#endif -} - -/** - * osd_page_alloc() - Allocate pages - * @count: Total number of Kernel pages you want to allocate - * - * Tries to allocate @count number of consecutive free kernel pages. - * And if successful, it will set the pages to 0 before returning. - * If successfull it will ret...

Hi Jeremy. According to your suggestion, I recreated patches for Ingo's x86.git tree. And this patch series includes Eddie's modification. Please review and forward them. (or push back to respin.) Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux

Hi Jeremy. According to your suggestion, I recreated patches for Ingo's x86.git tree. And this patch series includes Eddie's modification. Please review and forward them. (or push back to respin.) Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux

From: Joerg Roedel <jroedel at suse.de> Hi, here is a new version of the SEV-ES Guest Support patches for x86. The previous versions can be found as a linked list starting here: https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/ I updated the patch-set based on ther review comments I got and the discussions around it. Another important change is that the early IDT

From: Joerg Roedel <jroedel at suse.de> Hi, here is a new version of the SEV-ES Guest Support patches for x86. The previous versions can be found as a linked list starting here: https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/ I updated the patch-set based on ther review comments I got and the discussions around it. Another important change is that the early IDT

These patches make the changes necessary to build the kernel as Position Independent Executable (PIE) on x86_64. A PIE kernel can be relocated below the top 2G of the virtual address space. It allows to optionally extend the KASLR randomization range from 1G to 3G. Thanks a lot to Ard Biesheuvel & Kees Cook on their feedback on compiler changes, PIE support and KASLR in general. Thanks to

These patches make the changes necessary to build the kernel as Position Independent Executable (PIE) on x86_64. A PIE kernel can be relocated below the top 2G of the virtual address space. It allows to optionally extend the KASLR randomization range from 1G to 3G. Thanks a lot to Ard Biesheuvel & Kees Cook on their feedback on compiler changes, PIE support and KASLR in general. Thanks to