search for: paravirt_clobb

...__rettype __ret; \ - if (sizeof(__rettype) > sizeof(unsigned long)) { \ - unsigned long long __tmp; \ - unsigned long __ecx; \ - asm volatile(paravirt_alt(PARAVIRT_CALL) \ - : "=A" (__tmp), "=c" (__ecx) \ - : paravirt_type(__op), \ - paravirt_clobber(CLBR_ANY) \ + rettype __ret; \ + unsigned long __eax, __edx, __ecx; \ + if (sizeof(rettype) > sizeof(unsigned long)) { \ + asm volatile(pre \ + paravirt_alt(PARAVIRT_CALL) \ + post \ + : "=a" (__eax), "=d" (__edx), \ + &q...

...__rettype __ret; \ - if (sizeof(__rettype) > sizeof(unsigned long)) { \ - unsigned long long __tmp; \ - unsigned long __ecx; \ - asm volatile(paravirt_alt(PARAVIRT_CALL) \ - : "=A" (__tmp), "=c" (__ecx) \ - : paravirt_type(__op), \ - paravirt_clobber(CLBR_ANY) \ + rettype __ret; \ + unsigned long __eax, __edx, __ecx; \ + if (sizeof(rettype) > sizeof(unsigned long)) { \ + asm volatile(pre \ + paravirt_alt(PARAVIRT_CALL) \ + post \ + : "=a" (__eax), "=d" (__edx), \ + &q...

...pv_mmu_ops; extern struct pv_lock_ops pv_lock_ops; -#define PARAVIRT_PATCH(x) \ - (offsetof(struct paravirt_patch_template, x) / sizeof(void *)) - -#define paravirt_type(op) \ - [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ - [paravirt_opptr] "i" (&(op)) -#define paravirt_clobber(clobber) \ - [paravirt_clobber] "i" (clobber) - -/* - * Generate some code, and mark it as patchable by the - * apply_paravirt() alternate instruction patcher. - */ -#define _paravirt_alt(insn_string, type, clobber) \ - "771:\n\t" insn_string "\n" "772:\n"...

...deletions(-) diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index 26942ad..488c596 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -348,11 +348,23 @@ extern struct paravirt_patch_template pv_ops; #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) +/* + * Generate some code, and mark it as patchable by the + * apply_paravirt() alternate instruction patcher. + */ +#define _paravirt_alt(insn_string, type, clobber) \ + "771:\n\t" insn_string "\n" "772:\n"...

...ay in 64-bit */ \ - /* since this condition will never hold */ \ - if (sizeof(rettype) > sizeof(unsigned long)) { \ - asm volatile(pre \ - paravirt_alt(PARAVIRT_CALL) \ - post \ - : call_clbr, ASM_CALL_CONSTRAINT \ - : paravirt_type(op), \ - paravirt_clobber(clbr), \ - ##__VA_ARGS__ \ - : "memory", "cc" extra_clbr); \ - __ret = (rettype)((((u64)__edx) << 32) | __eax); \ - } else { \ - asm volatile(pre \ - paravirt_alt(PARAVIRT_CALL) \ - post \ - : call_clbr, ASM_CA...

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

...ne paravirt_opptr_call "c" +#define paravirt_opptr_type "i" +#endif + #define paravirt_type(op) \ [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ - [paravirt_opptr] "i" (&(pv_ops.op)) + [paravirt_opptr] paravirt_opptr_type (&(pv_ops.op)) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -393,7 +401,7 @@ int paravirt_disable_iospace(void); */ #define PARAVIRT_CALL \ ANNOTATE_RETPOLINE_SAFE \ - "call *%c[paravirt_opptr];" + "call *%" paravirt_opptr_call "[paravirt_opptr];" /*...

...ine paravirt_opptr_type "i" +#define PARAVIRT_CALL_POST "" +#endif + #define paravirt_type(op) \ [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ - [paravirt_opptr] "i" (&(pv_ops.op)) + [paravirt_opptr] paravirt_opptr_type (&(pv_ops.op)) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -379,9 +395,10 @@ int paravirt_disable_iospace(void); * offset into the paravirt_patch_template structure, and can therefore be * freely converted back into a structure offset. */ -#define PARAVIRT_CALL \ - ANNOTATE_RETPOLINE...

...ine paravirt_opptr_type "i" +#define PARAVIRT_CALL_POST "" +#endif + #define paravirt_type(op) \ [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ - [paravirt_opptr] "i" (&(pv_ops.op)) + [paravirt_opptr] paravirt_opptr_type (&(pv_ops.op)) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -377,9 +400,10 @@ int paravirt_disable_iospace(void); * offset into the paravirt_patch_template structure, and can therefore be * freely converted back into a structure offset. */ -#define PARAVIRT_CALL \ - ANNOTATE_RETPOLINE...

Minor changes based on feedback and rebase from v8. Splitting the previous serie in two. This part contains assembly code changes required for PIE but without any direct dependencies with the rest of the patchset. Changes: - patch v9 (assembly): - Moved to relative reference for sync_core based on feedback. - x86/crypto had multiple algorithms deleted, removed PIE changes to them. -

Minor changes based on feedback and rebase from v8. Splitting the previous serie in two. This part contains assembly code changes required for PIE but without any direct dependencies with the rest of the patchset. Changes: - patch v9 (assembly): - Moved to relative reference for sync_core based on feedback. - x86/crypto had multiple algorithms deleted, removed PIE changes to them. -

...TCH(x) \ (offsetof(struct paravirt_ops, x) / sizeof(void *)) -#define paravirt_type(type) \ - [paravirt_typenum] "i" (PARAVIRT_PATCH(type)) +#define paravirt_type(op) \ + [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ + [paravirt_opptr] "m" (op) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -258,7 +299,7 @@ unsigned paravirt_patch_call(void *insnb const void *target, u16 tgt_clobbers, unsigned long addr, u16 site_clobbers, unsigned len); -unsigned paravirt_patch_jmp(const void *target, void *ins...

...TCH(x) \ (offsetof(struct paravirt_ops, x) / sizeof(void *)) -#define paravirt_type(type) \ - [paravirt_typenum] "i" (PARAVIRT_PATCH(type)) +#define paravirt_type(op) \ + [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ + [paravirt_opptr] "m" (op) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -258,7 +299,7 @@ unsigned paravirt_patch_call(void *insnb const void *target, u16 tgt_clobbers, unsigned long addr, u16 site_clobbers, unsigned len); -unsigned paravirt_patch_jmp(const void *target, void *ins...

Splitting the previous serie in two. This part contains assembly code changes required for PIE but without any direct dependencies with the rest of the patchset. Changes: - patch v7 (assembly): - Split patchset and reorder changes. - patch v6: - Rebase on latest changes in jump tables and crypto. - Fix wording on couple commits. - Revisit checkpatch warnings. - Moving to

...TCH(x) \ (offsetof(struct paravirt_ops, x) / sizeof(void *)) -#define paravirt_type(type) \ - [paravirt_typenum] "i" (PARAVIRT_PATCH(type)) +#define paravirt_type(op) \ + [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ + [paravirt_opptr] "m" (op) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -258,7 +299,7 @@ unsigned paravirt_patch_call(void *insnb const void *target, u16 tgt_clobbers, unsigned long addr, u16 site_clobbers, unsigned len); -unsigned paravirt_patch_jmp(const void *target, void *ins...

...TCH(x) \ (offsetof(struct paravirt_ops, x) / sizeof(void *)) -#define paravirt_type(type) \ - [paravirt_typenum] "i" (PARAVIRT_PATCH(type)) +#define paravirt_type(op) \ + [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ + [paravirt_opptr] "m" (op) #define paravirt_clobber(clobber) \ [paravirt_clobber] "i" (clobber) @@ -258,7 +299,7 @@ unsigned paravirt_patch_call(void *insnb const void *target, u16 tgt_clobbers, unsigned long addr, u16 site_clobbers, unsigned len); -unsigned paravirt_patch_jmp(const void *target, void *ins...

...t; +#define PARAVIRT_CALL_POST "" > +#endif > + > #define paravirt_type(op) \ > [paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \ > - [paravirt_opptr] "i" (&(pv_ops.op)) > + [paravirt_opptr] paravirt_opptr_type (&(pv_ops.op)) > #define paravirt_clobber(clobber) \ > [paravirt_clobber] "i" (clobber) > > @@ -379,9 +395,10 @@ int paravirt_disable_iospace(void); > * offset into the paravirt_patch_template structure, and can therefore be > * freely converted back into a structure offset. > */ > -#define PARAV...