search for: __vsyscall_0

...((node << 12) | cpu), "c" (0xc0000103)); /* Store cpu number in limit so that it can be loaded quickly in user space in vgetcpu. @@ -285,8 +290,12 @@ cpu_vsyscall_notifier(struct notifier_bl static void __init map_vsyscall(void) { +#ifndef CONFIG_PARAVIRT extern char __vsyscall_0; unsigned long physaddr_page0 = __pa_symbol(&__vsyscall_0); +#else + unsigned long physaddr_page0 = __pa_symbol(paravirt_ops.vsyscall_page); +#endif /* Note that VSYSCALL_MAPPED_PAGES must agree with the code below. */ __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_page0, PAGE_KERNEL_VSYSCA...

...((node << 12) | cpu), "c" (0xc0000103)); /* Store cpu number in limit so that it can be loaded quickly in user space in vgetcpu. @@ -285,8 +290,12 @@ cpu_vsyscall_notifier(struct notifier_bl static void __init map_vsyscall(void) { +#ifndef CONFIG_PARAVIRT extern char __vsyscall_0; unsigned long physaddr_page0 = __pa_symbol(&__vsyscall_0); +#else + unsigned long physaddr_page0 = __pa_symbol(paravirt_ops.vsyscall_page); +#endif /* Note that VSYSCALL_MAPPED_PAGES must agree with the code below. */ __set_fixmap(VSYSCALL_FIRST_PAGE, physaddr_page0, PAGE_KERNEL_VSYSCA...

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). Konrad, could you could test these on Xen and run 'test_vsyscall test' [1]? I don't have a usable Xen setup. Also, I'd appreciate a review of patches 4 and 5 from some

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). Konrad, could you could test these on Xen and run 'test_vsyscall test' [1]? I don't have a usable Xen setup. Also, I'd appreciate a review of patches 4 and 5 from some

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). Konrad, could you could test these on Xen and run 'test_vsyscall test' [1]? I don't have a usable Xen setup. Also, I'd appreciate a review of patches 4 and 5 from some

...) * addition of the startup_paravirt function, to kick off guests (not tested) * fixed problems with patching * added a new field, vsyscall_page in the paravirt_ops struct, which allows the kernel to map a vsyscall_page on its own * fixed vsyscall functions to avoid calling paravirt_ops functions. __vsyscall_0 is the page to be mapped for the host. (set and get cpu not yet tested.) * fixed cpuid calls. * added substitute for the swapgs instruction. (Notice that I'm not saying it works ;-) ) In my TODO list, you can find: * putting swapgs to work * making sure legacy mode binaries work * merging i...

...) * addition of the startup_paravirt function, to kick off guests (not tested) * fixed problems with patching * added a new field, vsyscall_page in the paravirt_ops struct, which allows the kernel to map a vsyscall_page on its own * fixed vsyscall functions to avoid calling paravirt_ops functions. __vsyscall_0 is the page to be mapped for the host. (set and get cpu not yet tested.) * fixed cpuid calls. * added substitute for the swapgs instruction. (Notice that I'm not saying it works ;-) ) In my TODO list, you can find: * putting swapgs to work * making sure legacy mode binaries work * merging i...

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). - Patch 6 (optional) adds a trace event to vsyscall emulation. It will make it easier to handle performance regression reports :) [1]

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). - Patch 6 (optional) adds a trace event to vsyscall emulation. It will make it easier to handle performance regression reports :) [1]

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). - Patch 6 (optional) adds a trace event to vsyscall emulation. It will make it easier to handle performance regression reports :) [1]

..._edata = .; /* End of data section */ @@ -89,7 +95,7 @@ #define VVIRT_OFFSET (VSYSCALL_ADDR - VS #define VVIRT(x) (ADDR(x) - VVIRT_OFFSET) . = VSYSCALL_ADDR; - .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { *(.vsyscall_0) } + .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { *(.vsyscall_0) } :user __vsyscall_0 = VSYSCALL_VIRT_ADDR; . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); @@ -132,7 +138,7 @@ #undef VVIRT . = ALIGN(8192); /* init_task */ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { *(.data.init_task) - } + } :data . = ALIGN(4096); .data.page_aligned : AT(ADDR(.data.page...

...(void); +extern void native_sysret(void); + +static int __init print_banner(void) +{ + paravirt_ops.banner(); + return 0; +} +core_initcall(print_banner); + +/* We simply declare start_kernel to be the paravirt probe of last resort. */ +paravirt_probe_failsafe(start_kernel); + +extern unsigned long __vsyscall_0; +struct paravirt_ops paravirt_ops = { + .name = "bare hardware", + .mem_type = "BIOS-e820", + .paravirt_enabled = 0, + .pgd_alignment = sizeof(pgd_t) * PTRS_PER_PGD, + + .vsyscall_page = &__vsyscall_0, + .patch = native_patch, + .banner = default_banner, + .arch_setup = na...

...(void); +extern void native_sysret(void); + +static int __init print_banner(void) +{ + paravirt_ops.banner(); + return 0; +} +core_initcall(print_banner); + +/* We simply declare start_kernel to be the paravirt probe of last resort. */ +paravirt_probe_failsafe(start_kernel); + +extern unsigned long __vsyscall_0; +struct paravirt_ops paravirt_ops = { + .name = "bare hardware", + .mem_type = "BIOS-e820", + .paravirt_enabled = 0, + .pgd_alignment = sizeof(pgd_t) * PTRS_PER_PGD, + + .vsyscall_page = &__vsyscall_0, + .patch = native_patch, + .banner = default_banner, + .arch_setup = na...