search for: tsc_disable

Hi, This series integrate the processor.h header. There are a lot of things that are deeply architectural differences between architectures, but I've done my best to come to a settlement. With this series, I am very close to have selectable paravirt for x86_64, It applies ontop of today's x86 git, mm branch.

Hi, This series integrate the processor.h header. There are a lot of things that are deeply architectural differences between architectures, but I've done my best to come to a settlement. With this series, I am very close to have selectable paravirt for x86_64, It applies ontop of today's x86 git, mm branch.

Hi Andi, Four patches: - clean up asm/bugs.h, by moving all the C code into its own C file - split identify_cpu() into boot and secondary variants, so that boot-time setup functions can be marked __init - repost of the COMPAT_VDSO patches with a bit more robustness from unknown DT_tags, and functions marked __init, since all this is boot-time only setup. Thanks, J --

Hi Andi, Four patches: - clean up asm/bugs.h, by moving all the C code into its own C file - split identify_cpu() into boot and secondary variants, so that boot-time setup functions can be marked __init - repost of the COMPAT_VDSO patches with a bit more robustness from unknown DT_tags, and functions marked __init, since all this is boot-time only setup. Thanks, J --

The following patches are the latest update of the TSC and hrtimer patches I posted on 29/03. Rusty's original TSC patch has been resynced to the latest lguest repo, as has the hrtimer patch, which also incorporates feedback from Jeremy & Rusty: - Change clock event hrtimer to absolute time. 'now' is captured in the host during the hypercall. - Propagate -ETIME back to the

The following patches are the latest update of the TSC and hrtimer patches I posted on 29/03. Rusty's original TSC patch has been resynced to the latest lguest repo, as has the hrtimer patch, which also incorporates feedback from Jeremy & Rusty: - Change clock event hrtimer to absolute time. 'now' is captured in the host during the hypercall. - Propagate -ETIME back to the

...06-11-09 11:48:37.000000000 +1100 @@ -22,13 +22,6 @@ #include <linux/cpumask.h> #include <linux/init.h> -#ifdef CONFIG_PARAVIRT -#include <asm/paravirt.h> -#else -#define paravirt_enabled() 0 -#define __cpuid native_cpuid -#endif - /* flag for disabling the tsc */ extern int tsc_disable; @@ -166,59 +159,6 @@ static inline fastcall void native_cpuid : "0" (*eax), "2" (*ecx)); } -/* - * Generic CPUID function - * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx - * resulting in stale register contents being returned. - */ -static inline voi...

...06-11-09 11:48:37.000000000 +1100 @@ -22,13 +22,6 @@ #include <linux/cpumask.h> #include <linux/init.h> -#ifdef CONFIG_PARAVIRT -#include <asm/paravirt.h> -#else -#define paravirt_enabled() 0 -#define __cpuid native_cpuid -#endif - /* flag for disabling the tsc */ extern int tsc_disable; @@ -166,59 +159,6 @@ static inline fastcall void native_cpuid : "0" (*eax), "2" (*ecx)); } -/* - * Generic CPUID function - * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx - * resulting in stale register contents being returned. - */ -static inline voi...

...=============================== --- a/include/asm-i386/processor.h +++ b/include/asm-i386/processor.h @@ -20,6 +20,7 @@ #include <linux/threads.h> #include <asm/percpu.h> #include <linux/cpumask.h> +#include <asm/paravirt.h> /* flag for disabling the tsc */ extern int tsc_disable; @@ -143,18 +144,6 @@ static inline void detect_ht(struct cpui #define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */ #define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */ -static inline void __cpuid(unsigned int *eax, unsigned int *ebx, - unsigned int *ecx, unsigned int *...

...=============================== --- a/include/asm-i386/processor.h +++ b/include/asm-i386/processor.h @@ -20,6 +20,7 @@ #include <linux/threads.h> #include <asm/percpu.h> #include <linux/cpumask.h> +#include <asm/paravirt.h> /* flag for disabling the tsc */ extern int tsc_disable; @@ -143,18 +144,6 @@ static inline void detect_ht(struct cpui #define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */ #define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */ -static inline void __cpuid(unsigned int *eax, unsigned int *ebx, - unsigned int *ecx, unsigned int *...

...77e4058e936b arch/i386/kernel/tsc.c --- a/arch/i386/kernel/tsc.c Thu Dec 14 16:40:14 2006 -0800 +++ b/arch/i386/kernel/tsc.c Thu Dec 14 16:40:16 2006 -0800 @@ -23,6 +23,7 @@ * an extra value to store the TSC freq */ unsigned int tsc_khz; +unsigned long long (*custom_sched_clock)(void); int tsc_disable __cpuinitdata = 0; @@ -107,6 +108,9 @@ unsigned long long sched_clock(void) { unsigned long long this_offset; + if (unlikely(custom_sched_clock)) + return (*custom_sched_clock)(); + /* * in the NUMA case we dont use the TSC as they are not * synchronized across all CPUs. diff -r 77e...

...77e4058e936b arch/i386/kernel/tsc.c --- a/arch/i386/kernel/tsc.c Thu Dec 14 16:40:14 2006 -0800 +++ b/arch/i386/kernel/tsc.c Thu Dec 14 16:40:16 2006 -0800 @@ -23,6 +23,7 @@ * an extra value to store the TSC freq */ unsigned int tsc_khz; +unsigned long long (*custom_sched_clock)(void); int tsc_disable __cpuinitdata = 0; @@ -107,6 +108,9 @@ unsigned long long sched_clock(void) { unsigned long long this_offset; + if (unlikely(custom_sched_clock)) + return (*custom_sched_clock)(); + /* * in the NUMA case we dont use the TSC as they are not * synchronized across all CPUs. diff -r 77e...

...d1ec5a6e3e8c arch/i386/kernel/tsc.c --- a/arch/i386/kernel/tsc.c Tue Dec 12 13:53:09 2006 -0800 +++ b/arch/i386/kernel/tsc.c Tue Dec 12 13:53:15 2006 -0800 @@ -23,6 +23,7 @@ * an extra value to store the TSC freq */ unsigned int tsc_khz; +unsigned long long (*custom_sched_clock)(void); int tsc_disable __cpuinitdata = 0; @@ -107,6 +108,9 @@ unsigned long long sched_clock(void) { unsigned long long this_offset; + if (unlikely(custom_sched_clock)) + return (*custom_sched_clock)(); + /* * in the NUMA case we dont use the TSC as they are not * synchronized across all CPUs. diff -r d1e...

...d1ec5a6e3e8c arch/i386/kernel/tsc.c --- a/arch/i386/kernel/tsc.c Tue Dec 12 13:53:09 2006 -0800 +++ b/arch/i386/kernel/tsc.c Tue Dec 12 13:53:15 2006 -0800 @@ -23,6 +23,7 @@ * an extra value to store the TSC freq */ unsigned int tsc_khz; +unsigned long long (*custom_sched_clock)(void); int tsc_disable __cpuinitdata = 0; @@ -107,6 +108,9 @@ unsigned long long sched_clock(void) { unsigned long long this_offset; + if (unlikely(custom_sched_clock)) + return (*custom_sched_clock)(); + /* * in the NUMA case we dont use the TSC as they are not * synchronized across all CPUs. diff -r d1e...

...er_tsc.c 2006-03-12 19:57:48.000000000 -0800 @@ -22,6 +22,7 @@ #include "io_ports.h" #include "mach_timer.h" +#include "mach_schedclock.h" #include <asm/hpet.h> #include <asm/i8253.h> @@ -36,6 +37,7 @@ static inline void cpufreq_delayed_get(v int tsc_disable __devinitdata = 0; +int use_sched_clock_cycles; static int use_tsc; /* Number of usecs that the last interrupt was delayed */ static int delay_at_last_interrupt; @@ -116,23 +118,17 @@ static unsigned long long monotonic_cloc */ unsigned long long sched_clock(void) { - unsigned long long th...

...er_tsc.c 2006-03-12 19:57:48.000000000 -0800 @@ -22,6 +22,7 @@ #include "io_ports.h" #include "mach_timer.h" +#include "mach_schedclock.h" #include <asm/hpet.h> #include <asm/i8253.h> @@ -36,6 +37,7 @@ static inline void cpufreq_delayed_get(v int tsc_disable __devinitdata = 0; +int use_sched_clock_cycles; static int use_tsc; /* Number of usecs that the last interrupt was delayed */ static int delay_at_last_interrupt; @@ -116,23 +118,17 @@ static unsigned long long monotonic_cloc */ unsigned long long sched_clock(void) { - unsigned long long th...

Hi all, I've been looking at finding common ground between the VMI, Xen and other paravirtualization approaches, and after some discussion, we're getting somewhere. These first two patches are the fundamentals, stolen mainly from the VMI patches: removing assumptions about the kernel running in ring 0, and macro-izing all the obvious para-virtualize-needing insns. The third patch is

Hi all, I've been looking at finding common ground between the VMI, Xen and other paravirtualization approaches, and after some discussion, we're getting somewhere. These first two patches are the fundamentals, stolen mainly from the VMI patches: removing assumptions about the kernel running in ring 0, and macro-izing all the obvious para-virtualize-needing insns. The third patch is

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen