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| author | Ingo Molnar <mingo@kernel.org> | 2016-05-05 10:12:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-05 10:12:37 +0200 |
| commit | 1a618c2cfe4c02190d8d1f9c5052f0defc58de20 (patch) | |
| tree | 170002288786f702e1d4ca638b53d1594a7caa16 /arch/x86/kernel | |
| parent | 03d85a63ee3e2d3a43460f936b86334b32f88c89 (diff) | |
| parent | 8482716b9d865db34c55d4bf2fed19498e7195b9 (diff) | |
| download | lwn-1a618c2cfe4c02190d8d1f9c5052f0defc58de20.tar.gz lwn-1a618c2cfe4c02190d8d1f9c5052f0defc58de20.zip | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/apic/vector.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/mshyperv.c | 12 | ||||
| -rw-r--r-- | arch/x86/kernel/head_32.S | 6 |
3 files changed, 14 insertions, 7 deletions
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index ad59d70bcb1a..ef495511f019 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -256,7 +256,8 @@ static void clear_irq_vector(int irq, struct apic_chip_data *data) struct irq_desc *desc; int cpu, vector; - BUG_ON(!data->cfg.vector); + if (!data->cfg.vector) + return; vector = data->cfg.vector; for_each_cpu_and(cpu, data->domain, cpu_online_mask) diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index 4e7c6933691c..10c11b4da31d 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -152,6 +152,11 @@ static struct clocksource hyperv_cs = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; +static unsigned char hv_get_nmi_reason(void) +{ + return 0; +} + static void __init ms_hyperv_init_platform(void) { /* @@ -191,6 +196,13 @@ static void __init ms_hyperv_init_platform(void) machine_ops.crash_shutdown = hv_machine_crash_shutdown; #endif mark_tsc_unstable("running on Hyper-V"); + + /* + * Generation 2 instances don't support reading the NMI status from + * 0x61 port. + */ + if (efi_enabled(EFI_BOOT)) + x86_platform.get_nmi_reason = hv_get_nmi_reason; } const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = { diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 54cdbd2003fe..af1112980dd4 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -389,12 +389,6 @@ default_entry: /* Make changes effective */ wrmsr - /* - * And make sure that all the mappings we set up have NX set from - * the beginning. - */ - orl $(1 << (_PAGE_BIT_NX - 32)), pa(__supported_pte_mask + 4) - enable_paging: /* |