From: Linu Cherian <linu.cherian@xxxxxxxxxx> Having only 32 memslots is a real constraint for the maximum number of PCI devices that can be assigned to a single guest. Assuming each PCI device/virtual function having two memory BAR regions, we could assign only 15 devices/virtual functions to a guest. So increase KVM_MEM_SLOTS_NUM to 512 as done in other archs like x86 and powerpc. For this, KVM_USER_MEM_SLOTS has been changed to 508. Signed-off-by: Linu Cherian <linu.cherian@xxxxxxxxxx> --- arch/arm/kvm/arm.c | 3 +++ arch/arm64/include/asm/kvm_host.h | 2 +- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 8f92efa..a19389b 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -221,6 +221,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_MAX_VCPUS: r = KVM_MAX_VCPUS; break; + case KVM_CAP_NR_MEMSLOTS: + r = KVM_USER_MEM_SLOTS; + break; case KVM_CAP_MSI_DEVID: if (!kvm) r = -EINVAL; diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index e505038..88f017d 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -30,7 +30,7 @@ #define __KVM_HAVE_ARCH_INTC_INITIALIZED -#define KVM_USER_MEM_SLOTS 32 +#define KVM_USER_MEM_SLOTS 508 #define KVM_PRIVATE_MEM_SLOTS 4 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 #define KVM_HALT_POLL_NS_DEFAULT 500000 -- 1.9.1 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
