search for: x86_cpu_to_apicid

...mark.langsdorf@amd.com> diff -r 49ffe9ef67d4 drivers/xen/core/smpboot.c --- a/drivers/xen/core/smpboot.c Fri Feb 29 10:29:13 2008 +0000 +++ b/drivers/xen/core/smpboot.c Fri Feb 29 12:54:47 2008 -0600 @@ -276,7 +276,8 @@ void __init smp_prepare_cpus(unsigned in cpu_2_logical_apicid[0] = 0; x86_cpu_to_apicid[0] = 0; - set_x86_acpiid_to_apicid(0, 0); + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) + set_x86_acpiid_to_apicid(0, 0); current_thread_info()->cpu = 0; @@ -325,7 +326,8 @@ void __init smp_prepare_cpus(unsigned in cpu_2_logical_apicid[cpu] = cpu; x86_cpu_to_apicid[cpu] = cpu;...

...ch/i386/kernel/smpboot.c =================================================================== --- linux-2.6.16-rc5.orig/arch/i386/kernel/smpboot.c 2006-03-08 10:53:46.000000000 -0800 +++ linux-2.6.16-rc5/arch/i386/kernel/smpboot.c 2006-03-08 11:02:16.000000000 -0800 @@ -111,7 +111,7 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); extern unsigned char trampoline_data []; extern unsigned char trampoline_end []; -static unsigned char *trampoline_base; +unsigned char *trampoline_base; static int trampoline_exec; static void map_cpu_to_logical_apicid(void); @@ -507,6 +507,7 @@ static void __devinit start_secondary(vo...

...ch/i386/kernel/smpboot.c =================================================================== --- linux-2.6.16-rc5.orig/arch/i386/kernel/smpboot.c 2006-03-08 10:53:46.000000000 -0800 +++ linux-2.6.16-rc5/arch/i386/kernel/smpboot.c 2006-03-08 11:02:16.000000000 -0800 @@ -111,7 +111,7 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); extern unsigned char trampoline_data []; extern unsigned char trampoline_end []; -static unsigned char *trampoline_base; +unsigned char *trampoline_base; static int trampoline_exec; static void map_cpu_to_logical_apicid(void); @@ -507,6 +507,7 @@ static void __devinit start_secondary(vo...

...tivate_jump_labels); #ifdef CONFIG_PARAVIRT_SPINLOCKS /* Kick a cpu by its apicid. Used to wake up a halted vcpu */ -static void kvm_kick_cpu(int cpu) +void kvm_kick_cpu(int cpu) { int apicid; unsigned long flags = 0; @@ -576,7 +576,9 @@ static void kvm_kick_cpu(int cpu) apicid = per_cpu(x86_cpu_to_apicid, cpu); kvm_hypercall2(KVM_HC_KICK_CPU, flags, apicid); } +PV_CALLEE_SAVE_REGS_THUNK(kvm_kick_cpu); +#ifndef CONFIG_QUEUE_SPINLOCK enum kvm_contention_stat { TAKEN_SLOW, TAKEN_SLOW_PICKUP, @@ -804,6 +806,132 @@ static void kvm_unlock_kick(struct arch_spinlock *lock, __ticket_t ticket) }...

...tivate_jump_labels); #ifdef CONFIG_PARAVIRT_SPINLOCKS /* Kick a cpu by its apicid. Used to wake up a halted vcpu */ -static void kvm_kick_cpu(int cpu) +void kvm_kick_cpu(int cpu) { int apicid; unsigned long flags = 0; @@ -576,7 +576,9 @@ static void kvm_kick_cpu(int cpu) apicid = per_cpu(x86_cpu_to_apicid, cpu); kvm_hypercall2(KVM_HC_KICK_CPU, flags, apicid); } +PV_CALLEE_SAVE_REGS_THUNK(kvm_kick_cpu); +#ifndef CONFIG_QUEUE_SPINLOCK enum kvm_contention_stat { TAKEN_SLOW, TAKEN_SLOW_PICKUP, @@ -804,6 +806,132 @@ static void kvm_unlock_kick(struct arch_spinlock *lock, __ticket_t ticket) }...

OK, here it is. Benchmarks still coming. This is against Andi's 2.6.18-rc7-git3 tree, and replaces the patches between (and not including) i386-pda-asm-offsets and i386-early-fault. One patch is identical, one is mildly modified, the rest are re-implemented but inspired by Jeremy's PDA work. Thanks, Rusty. -- Help! Save Australia from the worst of the DMCA: http://linux.org.au/law

OK, here it is. Benchmarks still coming. This is against Andi's 2.6.18-rc7-git3 tree, and replaces the patches between (and not including) i386-pda-asm-offsets and i386-early-fault. One patch is identical, one is mildly modified, the rest are re-implemented but inspired by Jeremy's PDA work. Thanks, Rusty. -- Help! Save Australia from the worst of the DMCA: http://linux.org.au/law

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

...void native_smp_send_stop(void) { /* Don't deadlock on the call lock in panic */ int nolock = !spin_trylock(&call_lock); =================================================================== --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -99,9 +99,6 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); u8 apicid_2_node[MAX_APICID]; -DEFINE_PER_CPU(unsigned long, this_cpu_off); -EXPORT_PER_CPU_SYMBOL(this_cpu_off); - /* * Trampoline 80x86 program as an array. */ @@ -766,22 +763,6 @@ static inline struct task_struct * alloc #define alloc_idle_task(cpu) fork_idle(cpu) #endif -/* Init...

...void native_smp_send_stop(void) { /* Don't deadlock on the call lock in panic */ int nolock = !spin_trylock(&call_lock); =================================================================== --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -99,9 +99,6 @@ EXPORT_SYMBOL(x86_cpu_to_apicid); u8 apicid_2_node[MAX_APICID]; -DEFINE_PER_CPU(unsigned long, this_cpu_off); -EXPORT_PER_CPU_SYMBOL(this_cpu_off); - /* * Trampoline 80x86 program as an array. */ @@ -766,22 +763,6 @@ static inline struct task_struct * alloc #define alloc_idle_task(cpu) fork_idle(cpu) #endif -/* Init...

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) -

...sm-x86/smp.h Wed Feb 14 11:13:40 2007 +0800 +++ b/xen/include/asm-x86/smp.h Wed Feb 14 14:59:48 2007 +0800 @@ -45,6 +45,7 @@ extern void zap_low_mappings(l2_pgentry_ extern void zap_low_mappings(l2_pgentry_t *base); #endif +extern void init_low_mappings(void); #define MAX_APICID 256 extern u8 x86_cpu_to_apicid[]; diff -r 13e258a58044 xen/include/asm-x86/page.h --- a/xen/include/asm-x86/page.h Wed Feb 14 11:13:40 2007 +0800 +++ b/xen/include/asm-x86/page.h Wed Feb 14 15:00:49 2007 +0800 @@ -288,6 +288,9 @@ extern l2_pgentry_t idle_pg_table_l2[R #else extern root_pgentry_t idle_pg_table[ROOT_PAGETABL...

The 5-patch series to follow this email extends KVM-hypervisor and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks, based on Xen's implementation. One hypercall is introduced in KVM hypervisor,that allows a vcpu to kick another vcpu out of halt state. The blocking of vcpu is done using halt() in (lock_spinning) slowpath. Note: 1) patch is based on 3.4-rc3 + ticketlock

The 5-patch series to follow this email extends KVM-hypervisor and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks, based on Xen's implementation. One hypercall is introduced in KVM hypervisor,that allows a vcpu to kick another vcpu out of halt state. The blocking of vcpu is done using halt() in (lock_spinning) slowpath. Note: 1) patch is based on 3.4-rc3 + ticketlock

The 5-patch series to follow this email extends KVM-hypervisor and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks, based on Xen's implementation. One hypercall is introduced in KVM hypervisor,that allows a vcpu to kick another vcpu out of halt state. The blocking of vcpu is done using halt() in (lock_spinning) slowpath. Changes in V4: - reabsed to 3.2.0 pre. - use APIC

The 5-patch series to follow this email extends KVM-hypervisor and Linux guest running on KVM-hypervisor to support pv-ticket spinlocks, based on Xen's implementation. One hypercall is introduced in KVM hypervisor,that allows a vcpu to kick another vcpu out of halt state. The blocking of vcpu is done using halt() in (lock_spinning) slowpath. Changes in V4: - reabsed to 3.2.0 pre. - use APIC