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| author | Paul Mackerras <paulus@ozlabs.org> | 2017-04-28 08:23:16 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2017-04-28 08:23:16 +1000 |
| commit | fb7dcf723dd2cb1d5d8f2f49c3023130938848e3 (patch) | |
| tree | dc26c9f9616a06b88b34689f3a5b44a73738b52f /arch/powerpc/kvm/powerpc.c | |
| parent | db4b0dfab7b016f5514442046d86a9727ee87f12 (diff) | |
| parent | 5af50993850a48ba749b122173d789ea90976c72 (diff) | |
| download | linux-fb7dcf723dd2cb1d5d8f2f49c3023130938848e3.tar.bz2 | |
Merge remote-tracking branch 'remotes/powerpc/topic/xive' into kvm-ppc-next
This merges in the powerpc topic/xive branch to bring in the code for
the in-kernel XICS interrupt controller emulation to use the new XIVE
(eXternal Interrupt Virtualization Engine) hardware in the POWER9 chip
directly, rather than via a XICS emulation in firmware.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index cf725c580fc5..e4b58f2e335e 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -38,6 +38,8 @@ #include <asm/irqflags.h> #include <asm/iommu.h> #include <asm/switch_to.h> +#include <asm/xive.h> + #include "timing.h" #include "irq.h" #include "../mm/mmu_decl.h" @@ -697,7 +699,10 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) kvmppc_mpic_disconnect_vcpu(vcpu->arch.mpic, vcpu); break; case KVMPPC_IRQ_XICS: - kvmppc_xics_free_icp(vcpu); + if (xive_enabled()) + kvmppc_xive_cleanup_vcpu(vcpu); + else + kvmppc_xics_free_icp(vcpu); break; } @@ -1522,8 +1527,12 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, r = -EPERM; dev = kvm_device_from_filp(f.file); - if (dev) - r = kvmppc_xics_connect_vcpu(dev, vcpu, cap->args[1]); + if (dev) { + if (xive_enabled()) + r = kvmppc_xive_connect_vcpu(dev, vcpu, cap->args[1]); + else + r = kvmppc_xics_connect_vcpu(dev, vcpu, cap->args[1]); + } fdput(f); break; @@ -1547,7 +1556,7 @@ bool kvm_arch_intc_initialized(struct kvm *kvm) return true; #endif #ifdef CONFIG_KVM_XICS - if (kvm->arch.xics) + if (kvm->arch.xics || kvm->arch.xive) return true; #endif return false; |