[PATCH V2 2/2] KVM: arm64: Increase number of user memslots to 508
linucherian at gmail.com
linucherian at gmail.com
Tue Feb 7 23:15:41 PST 2017
From: Linu Cherian <linu.cherian at cavium.com>
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.
Hence increase KVM_USER_MEM_SLOTS to 508, so that KVM_MEM_SLOTS_NUM is
512 as done in other archs like x86 and powerpc.
Signed-off-by: Linu Cherian <linu.cherian at cavium.com>
---
arch/arm64/include/asm/kvm_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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
More information about the linux-arm-kernel
mailing list