Commit 084071d5 authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Paolo Bonzini
Browse files

KVM: rename KVM_REQ_PENDING_TIMER to KVM_REQ_UNBLOCK



KVM_REQ_UNBLOCK will be used to exit a vcpu from
its inner vcpu halt emulation loop.

Rename KVM_REQ_PENDING_TIMER to KVM_REQ_UNBLOCK, switch
PowerPC to arch specific request bit.
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>

Message-Id: <20210525134321.303768132@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 57ab8794
......@@ -118,10 +118,12 @@ KVM_REQ_MMU_RELOAD
necessary to inform each VCPU to completely refresh the tables. This
request is used for that.
KVM_REQ_PENDING_TIMER
KVM_REQ_UNBLOCK
This request may be made from a timer handler run on the host on behalf
of a VCPU. It informs the VCPU thread to inject a timer interrupt.
This request informs the vCPU to exit kvm_vcpu_block. It is used for
example from timer handlers that run on the host on behalf of a vCPU,
or in order to update the interrupt routing and ensure that assigned
devices will wake up the vCPU.
KVM_REQ_UNHALT
......
......@@ -51,6 +51,7 @@
/* PPC-specific vcpu->requests bit members */
#define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0)
#define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1)
#define KVM_REQ_PENDING_TIMER KVM_ARCH_REQ(2)
#include <linux/mmu_notifier.h>
......
......@@ -1669,7 +1669,7 @@ static void apic_timer_expired(struct kvm_lapic *apic, bool from_timer_fn)
}
atomic_inc(&apic->lapic_timer.pending);
kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu);
kvm_make_request(KVM_REQ_UNBLOCK, vcpu);
if (from_timer_fn)
kvm_vcpu_kick(vcpu);
}
......
......@@ -9501,7 +9501,7 @@ static int vcpu_run(struct kvm_vcpu *vcpu)
if (r <= 0)
break;
kvm_clear_request(KVM_REQ_PENDING_TIMER, vcpu);
kvm_clear_request(KVM_REQ_UNBLOCK, vcpu);
if (kvm_cpu_has_pending_timer(vcpu))
kvm_inject_pending_timer_irqs(vcpu);
......
......@@ -147,7 +147,7 @@ static inline bool is_error_page(struct page *page)
*/
#define KVM_REQ_TLB_FLUSH (0 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_MMU_RELOAD (1 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
#define KVM_REQ_PENDING_TIMER 2
#define KVM_REQ_UNBLOCK 2
#define KVM_REQ_UNHALT 3
#define KVM_REQUEST_ARCH_BASE 8
......
......@@ -2929,6 +2929,8 @@ static int kvm_vcpu_check_block(struct kvm_vcpu *vcpu)
goto out;
if (signal_pending(current))
goto out;
if (kvm_check_request(KVM_REQ_UNBLOCK, vcpu))
goto out;
ret = 0;
out:
......
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