leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC

Browse Source 
Enabling this capability connects the vcpu to the designated in-kernel
MPIC.  Using explicit connections between vcpus and irqchips allows
for flexibility, but the main benefit at the moment is that it
simplifies the code -- KVM doesn't need vm-global state to remember
which MPIC object is associated with this vm, and it doesn't need to
care about ordering between irqchip creation and vcpu creation.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: add stub functions for kvmppc_mpic_{dis,}connect_vcpu]
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Scott Wood
2013-04-12 14:08:47 +00:00
committed by Alexander Graf
parent 5df554ad5b
commit eb1e4f43e0
7 changed files with 141 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
arch/powerpc/include/asm/kvm_host.h
View File

@@ -377,6 +377,11 @@ struct kvmppc_booke_debug_reg {
u64 dac[KVMPPC_BOOKE_MAX_DAC];
};
#define KVMPPC_IRQ_DEFAULT 0
#define KVMPPC_IRQ_MPIC 1
struct openpic;
struct kvm_vcpu_arch {
ulong host_stack;
u32 host_pid;
@@ -558,6 +563,10 @@ struct kvm_vcpu_arch {
unsigned long magic_page_pa; /* phys addr to map the magic page to */
unsigned long magic_page_ea; /* effect. addr to map the magic page to */
int irq_type; /* one of KVM_IRQ_* */
int irq_cpu_id;
struct openpic *mpic; /* KVM_IRQ_MPIC */
#ifdef CONFIG_KVM_BOOK3S_64_HV
struct kvm_vcpu_arch_shared shregs;