search for: __switch_t

..._user = native_flush_tlb, .flush_tlb_kernel = native_flush_tlb_global, diff -r 320f0d4d2280 arch/i386/kernel/process.c --- a/arch/i386/kernel/process.c Tue Dec 12 13:50:50 2006 -0800 +++ b/arch/i386/kernel/process.c Tue Dec 12 13:50:53 2006 -0800 @@ -665,6 +665,37 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* + * Restore IOPL if needed. + */ + if (unlikely(prev->iopl != next->iopl)) + set_iopl_mask(next->iopl); + + /* + * Now maybe handle debug registers and/or IO bitmaps + */ + if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW) + || t...

..._user = native_flush_tlb, .flush_tlb_kernel = native_flush_tlb_global, diff -r 320f0d4d2280 arch/i386/kernel/process.c --- a/arch/i386/kernel/process.c Tue Dec 12 13:50:50 2006 -0800 +++ b/arch/i386/kernel/process.c Tue Dec 12 13:50:53 2006 -0800 @@ -665,6 +665,37 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* + * Restore IOPL if needed. + */ + if (unlikely(prev->iopl != next->iopl)) + set_iopl_mask(next->iopl); + + /* + * Now maybe handle debug registers and/or IO bitmaps + */ + if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW) + || t...

..._user = native_flush_tlb, .flush_tlb_kernel = native_flush_tlb_global, diff -r 01f2e46c1416 arch/i386/kernel/process.c --- a/arch/i386/kernel/process.c Thu Dec 14 14:26:24 2006 -0800 +++ b/arch/i386/kernel/process.c Thu Dec 14 14:50:22 2006 -0800 @@ -665,6 +665,31 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* + * Now maybe handle debug registers and/or IO bitmaps + */ + if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW) + || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP))) + __switch_to_xtra(next_p, tss); + + disable_tsc(prev_p, next_p); + + /* + *...

..._user = native_flush_tlb, .flush_tlb_kernel = native_flush_tlb_global, diff -r 01f2e46c1416 arch/i386/kernel/process.c --- a/arch/i386/kernel/process.c Thu Dec 14 14:26:24 2006 -0800 +++ b/arch/i386/kernel/process.c Thu Dec 14 14:50:22 2006 -0800 @@ -665,6 +665,31 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* + * Now maybe handle debug registers and/or IO bitmaps + */ + if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW) + || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP))) + __switch_to_xtra(next_p, tss); + + disable_tsc(prev_p, next_p); + + /* + *...

...r paravirt guests Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r 8110943fd7ad arch/i386/kernel/process.c --- a/arch/i386/kernel/process.c Thu Dec 14 16:15:20 2006 -0800 +++ b/arch/i386/kernel/process.c Thu Dec 14 16:21:57 2006 -0800 @@ -665,6 +665,15 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* + * Restore IOPL if needed. In normal use, the flags restore + * in the switch assembly will handle this. But if the kernel + * is running virtualized at a non-zero CPL, the popf will + * not restore flags, so it must be done in a separate step. + */ + if (get_k...

...r paravirt guests Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r 8110943fd7ad arch/i386/kernel/process.c --- a/arch/i386/kernel/process.c Thu Dec 14 16:15:20 2006 -0800 +++ b/arch/i386/kernel/process.c Thu Dec 14 16:21:57 2006 -0800 @@ -665,6 +665,15 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* + * Restore IOPL if needed. In normal use, the flags restore + * in the switch assembly will handle this. But if the kernel + * is running virtualized at a non-zero CPL, the popf will + * not restore flags, so it must be done in a separate step. + */ + if (get_k...

...pu == 0 && cpu_gdt_descr->address == 0) { gdt = (struct desc_struct *)alloc_bootmem_pages(PAGE_SIZE); /* alloc_bootmem_pages panics on failure, so no check */ --- a/arch/i386/kernel/process-xen.c +++ b/arch/i386/kernel/process-xen.c @@ -641,6 +641,8 @@ struct task_struct fastcall * __switch_t BUG_ON(mcl > _mcl + ARRAY_SIZE(_mcl)); if (unlikely(HYPERVISOR_multicall_check(_mcl, mcl - _mcl, NULL))) BUG(); + if (_mcl->op == __HYPERVISOR_fpu_taskswitch) + __get_cpu_var(xen_x86_cr0) |= X86_CR0_TS; /* * Restore %fs and %gs if needed. --- a/arch/i386/kernel/traps-xen.c +++...

...ocess.c =================================================================== --- linux-2.6.16-rc5.orig/arch/i386/kernel/process.c 2006-03-10 13:03:36.000000000 -0800 +++ linux-2.6.16-rc5/arch/i386/kernel/process.c 2006-03-10 15:57:34.000000000 -0800 @@ -662,18 +662,6 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* - * Restore %fs and %gs if needed. - * - * Glibc normally makes %fs be zero, and %gs is one of - * the TLS segments. - */ - if (unlikely(prev->fs | next->fs)) - loadsegment(fs, next->fs); - - if (prev->gs | next->gs) - loadsegment(gs, next->gs)...

...ocess.c =================================================================== --- linux-2.6.16-rc5.orig/arch/i386/kernel/process.c 2006-03-10 13:03:36.000000000 -0800 +++ linux-2.6.16-rc5/arch/i386/kernel/process.c 2006-03-10 15:57:34.000000000 -0800 @@ -662,18 +662,6 @@ struct task_struct fastcall * __switch_t load_TLS(next, cpu); /* - * Restore %fs and %gs if needed. - * - * Glibc normally makes %fs be zero, and %gs is one of - * the TLS segments. - */ - if (unlikely(prev->fs | next->fs)) - loadsegment(fs, next->fs); - - if (prev->gs | next->gs) - loadsegment(gs, next->gs)...

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

Hi Jeremy, all, Sorry this took so long, spent last week in Japan at OSDL conf then netconf. After several false starts, I ended up with a very simple implementation, which clashes significantly with your work since then 8(. I've pushed the patches anyway, but it's going to be significant work for me to re-merge them, so I wanted your feedback first. The first patch simply changes

Hi Jeremy, all, Sorry this took so long, spent last week in Japan at OSDL conf then netconf. After several false starts, I ended up with a very simple implementation, which clashes significantly with your work since then 8(. I've pushed the patches anyway, but it's going to be significant work for me to re-merge them, so I wanted your feedback first. The first patch simply changes

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

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *