search for: def_nat

..._32.c b/arch/x86/kernel/paravirt_patch_32.c > index 553acbbb4d32..c9c6106ae714 100644 > --- a/arch/x86/kernel/paravirt_patch_32.c > +++ b/arch/x86/kernel/paravirt_patch_32.c > @@ -1,17 +1,18 @@ > #include <asm/paravirt.h> > +#include <asm/special_insns.h> > > -DEF_NATIVE(pv_irq_ops, irq_disable, "cli"); > -DEF_NATIVE(pv_irq_ops, irq_enable, "sti"); > -DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf"); > -DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax"); > -DEF_NATIVE(pv_cpu_ops, iret, "iret"); &...

...f --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c index 553acbbb4d32..c9c6106ae714 100644 --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -1,17 +1,18 @@ #include <asm/paravirt.h> +#include <asm/special_insns.h> -DEF_NATIVE(pv_irq_ops, irq_disable, "cli"); -DEF_NATIVE(pv_irq_ops, irq_enable, "sti"); -DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf"); -DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax"); -DEF_NATIVE(pv_cpu_ops, iret, "iret"); -DEF_NATIVE(pv_mmu_op...

...in using early alternatives.) For more details, see the commit log in patch 11/13. Josh Poimboeuf (13): x86/paravirt: remove wbinvd() paravirt interface x86/paravirt: Fix output constraint macro names x86/paravirt: Convert native patch assembly code strings to macros x86/paravirt: Convert DEF_NATIVE macro to GCC extended asm syntax x86/paravirt: Move paravirt asm macros to paravirt-asm.h x86/paravirt: Clean up paravirt-asm.h x86/paravirt: Simplify ____PVOP_CALL() x86/paravirt: Clean up paravirt_types.h x86/asm: Convert ALTERNATIVE*() assembler macros to preprocessor macros x...

...in using early alternatives.) For more details, see the commit log in patch 11/13. Josh Poimboeuf (13): x86/paravirt: remove wbinvd() paravirt interface x86/paravirt: Fix output constraint macro names x86/paravirt: Convert native patch assembly code strings to macros x86/paravirt: Convert DEF_NATIVE macro to GCC extended asm syntax x86/paravirt: Move paravirt asm macros to paravirt-asm.h x86/paravirt: Clean up paravirt-asm.h x86/paravirt: Simplify ____PVOP_CALL() x86/paravirt: Clean up paravirt_types.h x86/asm: Convert ALTERNATIVE*() assembler macros to preprocessor macros x...

...ive_load_sp0, -#if defined(CONFIG_X86_32) - .irq_enable_sysexit = native_irq_enable_sysexit, -#endif #ifdef CONFIG_X86_64 #ifdef CONFIG_IA32_EMULATION .usergs_sysret32 = native_usergs_sysret32, --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -5,7 +5,6 @@ DEF_NATIVE(pv_irq_ops, irq_enable, "sti" DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf"); DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax"); DEF_NATIVE(pv_cpu_ops, iret, "iret"); -DEF_NATIVE(pv_cpu_ops, irq_enable_sysexit, "sti; sysexit"); DEF_NA...

..._X86_64 #ifdef CONFIG_IA32_EMULATION .usergs_sysret32 = native_usergs_sysret32, diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c index c89f50a..158dc06 100644 --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -5,7 +5,6 @@ DEF_NATIVE(pv_irq_ops, irq_enable, "sti"); DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf"); DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax"); DEF_NATIVE(pv_cpu_ops, iret, "iret"); -DEF_NATIVE(pv_cpu_ops, irq_enable_sysexit, "sti; sysexit"); DEF_...

...ive_load_sp0, -#if defined(CONFIG_X86_32) - .irq_enable_sysexit = native_irq_enable_sysexit, -#endif #ifdef CONFIG_X86_64 #ifdef CONFIG_IA32_EMULATION .usergs_sysret32 = native_usergs_sysret32, --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -5,7 +5,6 @@ DEF_NATIVE(pv_irq_ops, irq_enable, "sti" DEF_NATIVE(pv_irq_ops, restore_fl, "push %eax; popf"); DEF_NATIVE(pv_irq_ops, save_fl, "pushf; pop %eax"); DEF_NATIVE(pv_cpu_ops, iret, "iret"); -DEF_NATIVE(pv_cpu_ops, irq_enable_sysexit, "sti; sysexit"); DEF_NA...

...In particular this hunk: > > Index: linux-2.6/arch/x86/kernel/paravirt_patch_64.c > =================================================================== > --- linux-2.6.orig/arch/x86/kernel/paravirt_patch_64.c > +++ linux-2.6/arch/x86/kernel/paravirt_patch_64.c > @@ -22,6 +22,10 @@ DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs") > DEF_NATIVE(, mov32, "mov %edi, %eax"); > DEF_NATIVE(, mov64, "mov %rdi, %rax"); > > +#if defined(CONFIG_PARAVIRT_SPINLOCKS)&& defined(CONFIG_QUEUE_SPINLOCK) > +DEF_NATIVE(pv_lock_ops, queue_unlock, "mo...

...In particular this hunk: > > Index: linux-2.6/arch/x86/kernel/paravirt_patch_64.c > =================================================================== > --- linux-2.6.orig/arch/x86/kernel/paravirt_patch_64.c > +++ linux-2.6/arch/x86/kernel/paravirt_patch_64.c > @@ -22,6 +22,10 @@ DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs") > DEF_NATIVE(, mov32, "mov %edi, %eax"); > DEF_NATIVE(, mov64, "mov %rdi, %rax"); > > +#if defined(CONFIG_PARAVIRT_SPINLOCKS)&& defined(CONFIG_QUEUE_SPINLOCK) > +DEF_NATIVE(pv_lock_ops, queue_unlock, "mo...

...kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c index d9f32e6..628c23b 100644 --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -1,4 +1,6 @@ #include <asm/paravirt.h> +#include <asm/spinlock.h> +#include <linux/stringify.h> DEF_NATIVE(pv_irq_ops, irq_disable, "cli"); DEF_NATIVE(pv_irq_ops, irq_enable, "sti"); @@ -12,6 +14,14 @@ DEF_NATIVE(pv_mmu_ops, read_cr3, "mov %cr3, %eax"); DEF_NATIVE(pv_cpu_ops, clts, "clts"); DEF_NATIVE(pv_cpu_ops, read_tsc, "rdtsc"); +DEF_NATIVE(,...

In a future patch, the NATIVE_* instruction string macros will be used in GCC extended inline asm, which requires registers to have two '%' instead of one in the asm template string. Convert the DEF_NATIVE macro to the GCC extended asm syntax so the NATIVE_* macros can be shared more broadly. Signed-off-by: Josh Poimboeuf <jpoimboe at redhat.com> --- arch/x86/include/asm/paravirt_types.h | 10 +++++++--- arch/x86/include/asm/special_insns.h | 14 +++++++------- 2 files changed, 14 inserti...

The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit (and sysret32 in compat mode) pv ops, as suggested by Andy. (I ended up patching TEST with XOR to avoid extra NOPs, even though I said yesterday it would be wrong. It's not wrong) As result of this patch irq_enable_sysexit and

The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit (and sysret32 in compat mode) pv ops, as suggested by Andy. (I ended up patching TEST with XOR to avoid extra NOPs, even though I said yesterday it would be wrong. It's not wrong) As result of this patch irq_enable_sysexit and

The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit (and sysret32 in compat mode) pv ops, as suggested by Andy. As result of this patch irq_enable_sysexit and usergs_sysret32 pv ops are not used anymore by anyone and so can be removed. v2: * patch both TEST and JZ intructions with a

The first patch fixes Xen PV regression introduced by 32-bit rewrite. Unlike the earlier version it uses ALTERNATIVE instruction and avoids using xen_sysexit (and sysret32 in compat mode) pv ops, as suggested by Andy. As result of this patch irq_enable_sysexit and usergs_sysret32 pv ops are not used anymore by anyone and so can be removed. v2: * patch both TEST and JZ intructions with a

This series removes some no longer needed stuff from paravirt infrastructure and puts large quantities of paravirt ops under a new config option PARAVIRT_XXL which is selected by XEN_PV only. A pvops kernel without XEN_PV being configured is about 2.5% smaller with this series applied. tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt: Fix spectre-v2 mitigations for

...t; Index: linux-2.6/arch/x86/kernel/paravirt_patch_64.c >>> =================================================================== >>> --- linux-2.6.orig/arch/x86/kernel/paravirt_patch_64.c >>> +++ linux-2.6/arch/x86/kernel/paravirt_patch_64.c >>> @@ -22,6 +22,10 @@ DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs") >>> DEF_NATIVE(, mov32, "mov %edi, %eax"); >>> DEF_NATIVE(, mov64, "mov %rdi, %rax"); >>> >>> +#if defined(CONFIG_PARAVIRT_SPINLOCKS)&& defined(CONFIG_QUEUE_SPINLOCK) >>> +DEF_N...

...t; Index: linux-2.6/arch/x86/kernel/paravirt_patch_64.c >>> =================================================================== >>> --- linux-2.6.orig/arch/x86/kernel/paravirt_patch_64.c >>> +++ linux-2.6/arch/x86/kernel/paravirt_patch_64.c >>> @@ -22,6 +22,10 @@ DEF_NATIVE(pv_cpu_ops, swapgs, "swapgs") >>> DEF_NATIVE(, mov32, "mov %edi, %eax"); >>> DEF_NATIVE(, mov64, "mov %rdi, %rax"); >>> >>> +#if defined(CONFIG_PARAVIRT_SPINLOCKS)&& defined(CONFIG_QUEUE_SPINLOCK) >>> +DEF_N...

...write_msr = native_write_msr, .read_msr_safe = native_read_msr_safe, diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c index 11aaf1eaa0e4..0a1ba3f80cbf 100644 --- a/arch/x86/kernel/paravirt_patch_64.c +++ b/arch/x86/kernel/paravirt_patch_64.c @@ -10,7 +10,6 @@ DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax"); DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax"); DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3"); DEF_NATIVE(pv_mmu_ops, flush_tlb_single, "invlpg (%rdi)"); -DEF_NATIVE(pv_cpu_ops, wbinvd, "wbinvd&...

On 04/10/17 17:58, Josh Poimboeuf wrote: > In a future patch, the NATIVE_* instruction string macros will be used > in GCC extended inline asm, which requires registers to have two '%' > instead of one in the asm template string. Convert the DEF_NATIVE macro > to the GCC extended asm syntax so the NATIVE_* macros can be shared more > broadly. > > Signed-off-by: Josh Poimboeuf <jpoimboe at redhat.com> Reviewed-by: Juergen Gross <jgross at suse.com> Juergen