Re: [Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-05-31 Thread Peter Maydell
On 31 May 2016 at 10:04, Vijay Kilari wrote: > On Wed, Apr 6, 2016 at 8:31 PM, Vijay Kilari wrote: >> On Mon, Apr 4, 2016 at 10:14 PM, Peter Maydell >> wrote: >>> If you want to avoid defining TARGET_PAGE_SIZE to the >>> lowest-common-denominator 1K, then yes, you'd need to >>> choose it at run

Re: [Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-05-31 Thread Vijay Kilari
Hi Peter On Wed, Apr 6, 2016 at 8:31 PM, Vijay Kilari wrote: > On Mon, Apr 4, 2016 at 10:14 PM, Peter Maydell > wrote: >> On 4 April 2016 at 17:40, Vijay Kilari wrote: >>> On Mon, Apr 4, 2016 at 7:14 PM, Peter Maydell >>> wrote: I agree that this would definitely improve performance (bo

Re: [Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-04-06 Thread Vijay Kilari
On Mon, Apr 4, 2016 at 10:14 PM, Peter Maydell wrote: > On 4 April 2016 at 17:40, Vijay Kilari wrote: >> On Mon, Apr 4, 2016 at 7:14 PM, Peter Maydell >> wrote: >>> I agree that this would definitely improve performance (both for >>> migration and for emulated guests), but I'm afraid this break

Re: [Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-04-04 Thread Vijay Kilari
On Mon, Apr 4, 2016 at 7:14 PM, Peter Maydell wrote: > On 4 April 2016 at 14:39, wrote: >> From: Vijay >> >> Set target page size to minimum 4K for aarch64. >> This helps to reduce live migration downtime significantly. >> >> Signed-off-by: Vijaya Kumar K >> --- >> target-arm/cpu.h |7 +++

Re: [Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-04-04 Thread Peter Maydell
On 4 April 2016 at 17:40, Vijay Kilari wrote: > On Mon, Apr 4, 2016 at 7:14 PM, Peter Maydell > wrote: >> I agree that this would definitely improve performance (both for >> migration and for emulated guests), but I'm afraid this breaks >> running 32-bit ARMv5 and ARMv7M guests with this QEMU bi

[Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-04-04 Thread vijayak
From: Vijay Set target page size to minimum 4K for aarch64. This helps to reduce live migration downtime significantly. Signed-off-by: Vijaya Kumar K --- target-arm/cpu.h |7 +++ 1 file changed, 7 insertions(+) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 066ff67..2e4b48f 10

Re: [Qemu-devel] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64

2016-04-04 Thread Peter Maydell
On 4 April 2016 at 14:39, wrote: > From: Vijay > > Set target page size to minimum 4K for aarch64. > This helps to reduce live migration downtime significantly. > > Signed-off-by: Vijaya Kumar K > --- > target-arm/cpu.h |7 +++ > 1 file changed, 7 insertions(+) > > diff --git a/target-