diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-18 17:05:47 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-18 17:05:47 -0400 |
commit | 78f28b7c555359c67c2a0d23f7436e915329421e (patch) | |
tree | 7f8197f82f83c0c19fd9bc85b5d10b5a755d0656 /arch/x86/kernel/cpu/vmware.c | |
parent | 3240a77b515f4a15e24d8a3a2135bc87b02cf1d6 (diff) | |
parent | 7bd867dfb4e0357e06a3211ab2bd0e714110def3 (diff) |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (38 commits)
x86: Move get/set_wallclock to x86_platform_ops
x86: platform: Fix section annotations
x86: apic namespace cleanup
x86: Distangle ioapic and i8259
x86: Add Moorestown early detection
x86: Add hardware_subarch ID for Moorestown
x86: Add early platform detection
x86: Move tsc_init to late_time_init
x86: Move tsc_calibration to x86_init_ops
x86: Replace the now identical time_32/64.c by time.c
x86: time_32/64.c unify profile_pc
x86: Move calibrate_cpu to tsc.c
x86: Make timer setup and global variables the same in time_32/64.c
x86: Remove mca bus ifdef from timer interrupt
x86: Simplify timer_ack magic in time_32.c
x86: Prepare unification of time_32/64.c
x86: Remove do_timer hook
x86: Add timer_init to x86_init_ops
x86: Move percpu clockevents setup to x86_init_ops
x86: Move xen_post_allocator_init into xen_pagetable_setup_done
...
Fix up conflicts in arch/x86/include/asm/io_apic.h
Diffstat (limited to 'arch/x86/kernel/cpu/vmware.c')
-rw-r--r-- | arch/x86/kernel/cpu/vmware.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c index bc24f514ec93..0a46b4df5d80 100644 --- a/arch/x86/kernel/cpu/vmware.c +++ b/arch/x86/kernel/cpu/vmware.c | |||
@@ -24,6 +24,7 @@ | |||
24 | #include <linux/dmi.h> | 24 | #include <linux/dmi.h> |
25 | #include <asm/div64.h> | 25 | #include <asm/div64.h> |
26 | #include <asm/vmware.h> | 26 | #include <asm/vmware.h> |
27 | #include <asm/x86_init.h> | ||
27 | 28 | ||
28 | #define CPUID_VMWARE_INFO_LEAF 0x40000000 | 29 | #define CPUID_VMWARE_INFO_LEAF 0x40000000 |
29 | #define VMWARE_HYPERVISOR_MAGIC 0x564D5868 | 30 | #define VMWARE_HYPERVISOR_MAGIC 0x564D5868 |
@@ -47,21 +48,29 @@ static inline int __vmware_platform(void) | |||
47 | return eax != (uint32_t)-1 && ebx == VMWARE_HYPERVISOR_MAGIC; | 48 | return eax != (uint32_t)-1 && ebx == VMWARE_HYPERVISOR_MAGIC; |
48 | } | 49 | } |
49 | 50 | ||
50 | static unsigned long __vmware_get_tsc_khz(void) | 51 | static unsigned long vmware_get_tsc_khz(void) |
51 | { | 52 | { |
52 | uint64_t tsc_hz; | 53 | uint64_t tsc_hz; |
53 | uint32_t eax, ebx, ecx, edx; | 54 | uint32_t eax, ebx, ecx, edx; |
54 | 55 | ||
55 | VMWARE_PORT(GETHZ, eax, ebx, ecx, edx); | 56 | VMWARE_PORT(GETHZ, eax, ebx, ecx, edx); |
56 | 57 | ||
57 | if (ebx == UINT_MAX) | ||
58 | return 0; | ||
59 | tsc_hz = eax | (((uint64_t)ebx) << 32); | 58 | tsc_hz = eax | (((uint64_t)ebx) << 32); |
60 | do_div(tsc_hz, 1000); | 59 | do_div(tsc_hz, 1000); |
61 | BUG_ON(tsc_hz >> 32); | 60 | BUG_ON(tsc_hz >> 32); |
62 | return tsc_hz; | 61 | return tsc_hz; |
63 | } | 62 | } |
64 | 63 | ||
64 | void __init vmware_platform_setup(void) | ||
65 | { | ||
66 | uint32_t eax, ebx, ecx, edx; | ||
67 | |||
68 | VMWARE_PORT(GETHZ, eax, ebx, ecx, edx); | ||
69 | |||
70 | if (ebx != UINT_MAX) | ||
71 | x86_platform.calibrate_tsc = vmware_get_tsc_khz; | ||
72 | } | ||
73 | |||
65 | /* | 74 | /* |
66 | * While checking the dmi string infomation, just checking the product | 75 | * While checking the dmi string infomation, just checking the product |
67 | * serial key should be enough, as this will always have a VMware | 76 | * serial key should be enough, as this will always have a VMware |
@@ -87,12 +96,6 @@ int vmware_platform(void) | |||
87 | return 0; | 96 | return 0; |
88 | } | 97 | } |
89 | 98 | ||
90 | unsigned long vmware_get_tsc_khz(void) | ||
91 | { | ||
92 | BUG_ON(!vmware_platform()); | ||
93 | return __vmware_get_tsc_khz(); | ||
94 | } | ||
95 | |||
96 | /* | 99 | /* |
97 | * VMware hypervisor takes care of exporting a reliable TSC to the guest. | 100 | * VMware hypervisor takes care of exporting a reliable TSC to the guest. |
98 | * Still, due to timing difference when running on virtual cpus, the TSC can | 101 | * Still, due to timing difference when running on virtual cpus, the TSC can |