* [GIT PULL] x86/platform changes for v5.2
@ 2019-05-06 10:44 Ingo Molnar
2019-05-06 23:40 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Ingo Molnar @ 2019-05-06 10:44 UTC (permalink / raw)
To: Linus Torvalds
Cc: linux-kernel, Thomas Gleixner, Borislav Petkov, Peter Zijlstra,
Andrew Morton
Linus,
Please pull the latest x86-platform-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-platform-for-linus
# HEAD: 14e581c381b942ce5463a7e61326d8ce1c843be7 x86/kvm: Make steal_time visible
Smaller update for Hyper-V to support EOI assist, plus LTO fixes.
Thanks,
Ingo
------------------>
Andi Kleen (2):
x86/hyperv: Make hv_vcpu_is_preempted() visible
x86/kvm: Make steal_time visible
Vitaly Kuznetsov (1):
x86/hyper-v: Implement EOI assist
arch/x86/hyperv/hv_apic.c | 5 +++++
arch/x86/hyperv/hv_spinlock.c | 2 +-
arch/x86/kernel/kvm.c | 2 +-
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c
index 8eb6fbee8e13..5c056b8aebef 100644
--- a/arch/x86/hyperv/hv_apic.c
+++ b/arch/x86/hyperv/hv_apic.c
@@ -86,6 +86,11 @@ static void hv_apic_write(u32 reg, u32 val)
static void hv_apic_eoi_write(u32 reg, u32 val)
{
+ struct hv_vp_assist_page *hvp = hv_vp_assist_page[smp_processor_id()];
+
+ if (hvp && (xchg(&hvp->apic_assist, 0) & 0x1))
+ return;
+
wrmsr(HV_X64_MSR_EOI, val, 0);
}
diff --git a/arch/x86/hyperv/hv_spinlock.c b/arch/x86/hyperv/hv_spinlock.c
index a861b0456b1a..07f21a06392f 100644
--- a/arch/x86/hyperv/hv_spinlock.c
+++ b/arch/x86/hyperv/hv_spinlock.c
@@ -56,7 +56,7 @@ static void hv_qlock_wait(u8 *byte, u8 val)
/*
* Hyper-V does not support this so far.
*/
-bool hv_vcpu_is_preempted(int vcpu)
+__visible bool hv_vcpu_is_preempted(int vcpu)
{
return false;
}
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 5c93a65ee1e5..3f0cc828cc36 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -67,7 +67,7 @@ static int __init parse_no_stealacc(char *arg)
early_param("no-steal-acc", parse_no_stealacc);
static DEFINE_PER_CPU_DECRYPTED(struct kvm_vcpu_pv_apf_data, apf_reason) __aligned(64);
-static DEFINE_PER_CPU_DECRYPTED(struct kvm_steal_time, steal_time) __aligned(64);
+DEFINE_PER_CPU_DECRYPTED(struct kvm_steal_time, steal_time) __aligned(64) __visible;
static int has_steal_clock = 0;
/*
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [GIT PULL] x86/platform changes for v5.2
2019-05-06 10:44 [GIT PULL] x86/platform changes for v5.2 Ingo Molnar
@ 2019-05-06 23:40 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2019-05-06 23:40 UTC (permalink / raw)
To: Ingo Molnar
Cc: Linus Torvalds, linux-kernel, Thomas Gleixner, Borislav Petkov,
Peter Zijlstra, Andrew Morton
The pull request you sent on Mon, 6 May 2019 12:44:23 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-platform-for-linus
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/ba3934de557a2074b89d67e29e5ce119f042d057
Thank you!
--
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