search for: __crt_ctx

...irt.h> +#endif #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -71,5 +74,17 @@ int main(void) DEFINE(TSS_ist, offsetof(struct tss_struct, ist)); BLANK(); DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); + +#ifdef CONFIG_PARAVIRT +#define ENTRY(entry) DEFINE(PARAVIRT_ ## entry, offsetof(struct paravirt_ops, entry)) + BLANK(); + ENTRY(paravirt_enabled); + ENTRY(irq_disable); + ENTRY(irq_enable); + ENTRY(sysret); + ENTRY(iret); + ENTRY(read_cr2); + ENTRY(swapgs); +#endif return 0; } --

...irt.h> +#endif #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -71,5 +74,17 @@ int main(void) DEFINE(TSS_ist, offsetof(struct tss_struct, ist)); BLANK(); DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); + +#ifdef CONFIG_PARAVIRT +#define ENTRY(entry) DEFINE(PARAVIRT_ ## entry, offsetof(struct paravirt_ops, entry)) + BLANK(); + ENTRY(paravirt_enabled); + ENTRY(irq_disable); + ENTRY(irq_enable); + ENTRY(sysret); + ENTRY(iret); + ENTRY(read_cr2); + ENTRY(swapgs); +#endif return 0; } --

Thanks. I actually checked the IR code generated, it seems inline assembly is being handled correctly. The preprocessing is also being done correctly. Here is the asm-offsets.i file snippet.. ... builtin_offsetof(struct crypto_tfm,__crt_ctx))); asm volatile("\n->" : : ); asm volatile("\n->" "__NR_syscall_max" " %0 " "sizeof(syscalls) - 1" : : "i" (sizeof(syscalls) - 1)); return 0; } .... and here is the IR code snippet - ... tail call void asm sideeffect "...

On Sep 27, 2008, at 4:34 PM, Ashish Bijlani wrote: > Thanks for the help. I've a couple of questions though: > > How does LLVM deal with inline assembly? It's been implemented piece by piece on an as-needed basis. At this point most of the things people actually use should work. llvm-gcc has seen the Linux kernel, so most usages in there ought to work. The symptoms here

Thanks for the help. I've a couple of questions though: How does LLVM deal with inline assembly? I'm trying to compile kernel and I get this error probably because LLVM is not able to handle inline assembly. I'm using LLVM-2.3 code snippet from "arch/x86_64/kernel/asm-offsets.c" .... #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 "

...t.o EXTRA_AFLAGS := -traditional =================================================================== --- a/arch/i386/kernel/asm-offsets.c +++ b/arch/i386/kernel/asm-offsets.c @@ -74,4 +74,11 @@ void foo(void) DEFINE(VDSO_PRELINK, VDSO_PRELINK); OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); +#ifdef CONFIG_PARAVIRT + OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable); + OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable); + OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit); + OFFSET(PARAVIRT_iret, paravirt_ops, iret); + OFFSET(PARAVIRT_read_cr0, paravirt_op...

...t.o EXTRA_AFLAGS := -traditional =================================================================== --- a/arch/i386/kernel/asm-offsets.c +++ b/arch/i386/kernel/asm-offsets.c @@ -74,4 +74,11 @@ void foo(void) DEFINE(VDSO_PRELINK, VDSO_PRELINK); OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); +#ifdef CONFIG_PARAVIRT + OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable); + OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable); + OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit); + OFFSET(PARAVIRT_iret, paravirt_ops, iret); + OFFSET(PARAVIRT_read_cr0, paravirt_op...

Hi Andrew, This patch series adds to the end of the existing i386-gdt-cleanups patches: allow-per-cpu-variables-to-be-page-aligned.patch i386-gdt-cleanups-use-per-cpu-variables-for-gdt-pda.patch i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot.patch i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot-fix.patch i386-gdt-cleanups-clean-up-cpu_init.patch

Hi Andrew, This patch series adds to the end of the existing i386-gdt-cleanups patches: allow-per-cpu-variables-to-be-page-aligned.patch i386-gdt-cleanups-use-per-cpu-variables-for-gdt-pda.patch i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot.patch i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot-fix.patch i386-gdt-cleanups-clean-up-cpu_init.patch

...nclude <asm/elf.h> +#include <asm/paravirt.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -74,4 +75,11 @@ void foo(void) DEFINE(VDSO_PRELINK, VDSO_PRELINK); OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); +#ifdef CONFIG_PARAVIRT + OFFSET(PARAVIRT_irq_disable, paravirt_ops, irq_disable); + OFFSET(PARAVIRT_irq_enable, paravirt_ops, irq_enable); + OFFSET(PARAVIRT_irq_enable_sysexit, paravirt_ops, irq_enable_sysexit); + OFFSET(PARAVIRT_iret, paravirt_ops, iret); + OFFSET(PARAVIRT_read_cr0, paravirt_op...

Hi Andi, This is a series of patches based on your latest queue (as of the other day, at least). It includes: - the most recent patch to compute the appropriate amount of percpu space to allocate, using a separate reservation for modules where needed. - make the percpu sections page-aligned, so that percpu variables can be page aligned if needed (which is used by gdt_page) -

Hi Andi, This is a series of patches based on your latest queue (as of the other day, at least). It includes: - the most recent patch to compute the appropriate amount of percpu space to allocate, using a separate reservation for modules where needed. - make the percpu sections page-aligned, so that percpu variables can be page aligned if needed (which is used by gdt_page) -

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

...sm/paravirt.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -71,5 +72,17 @@ int main(void) DEFINE(TSS_ist, offsetof(struct tss_struct, ist)); BLANK(); DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); + +#ifdef CONFIG_PARAVIRT +#define ENTRY(entry) DEFINE(PARAVIRT_ ## entry, offsetof(struct paravirt_ops, entry)) + BLANK(); + ENTRY(paravirt_enabled); + ENTRY(irq_disable); + ENTRY(irq_enable); + ENTRY(irq_enable_sysexit); + ENTRY(iret); + ENTRY(read_cr0); +#endif + return 0; } Index: linux-2...

...sm/paravirt.h> #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -71,5 +72,17 @@ int main(void) DEFINE(TSS_ist, offsetof(struct tss_struct, ist)); BLANK(); DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); + +#ifdef CONFIG_PARAVIRT +#define ENTRY(entry) DEFINE(PARAVIRT_ ## entry, offsetof(struct paravirt_ops, entry)) + BLANK(); + ENTRY(paravirt_enabled); + ENTRY(irq_disable); + ENTRY(irq_enable); + ENTRY(irq_enable_sysexit); + ENTRY(iret); + ENTRY(read_cr0); +#endif + return 0; } Index: linux-2...

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths