Re: [Xen-devel] [PATCH 1/2] VT-d: check all of an RMRR for being E820-reserved

2020-02-17 Thread Tian, Kevin
> From: Jan Beulich > Sent: Thursday, February 6, 2020 9:31 PM > > Checking just the first and last page is not sufficient (and redundant > for single-page regions). As we don't need to care about IA64 anymore, > use an x86-specific function to get this done without looping over each >

Re: [Xen-devel] [PATCH 1/2] VT-d: check all of an RMRR for being E820-reserved

2020-02-07 Thread Roger Pau Monné
On Fri, Feb 07, 2020 at 02:27:11PM +0100, Jan Beulich wrote: > On 07.02.2020 13:20, Roger Pau Monné wrote: > > On Thu, Feb 06, 2020 at 02:31:03PM +0100, Jan Beulich wrote: > >> Checking just the first and last page is not sufficient (and redundant > >> for single-page regions). As we don't need to

Re: [Xen-devel] [PATCH 1/2] VT-d: check all of an RMRR for being E820-reserved

2020-02-07 Thread Jan Beulich
On 07.02.2020 13:20, Roger Pau Monné wrote: > On Thu, Feb 06, 2020 at 02:31:03PM +0100, Jan Beulich wrote: >> Checking just the first and last page is not sufficient (and redundant >> for single-page regions). As we don't need to care about IA64 anymore, >> use an x86-specific function to get this

Re: [Xen-devel] [PATCH 1/2] VT-d: check all of an RMRR for being E820-reserved

2020-02-07 Thread Roger Pau Monné
On Thu, Feb 06, 2020 at 02:31:03PM +0100, Jan Beulich wrote: > Checking just the first and last page is not sufficient (and redundant > for single-page regions). As we don't need to care about IA64 anymore, > use an x86-specific function to get this done without looping over each > individual

[Xen-devel] [PATCH 1/2] VT-d: check all of an RMRR for being E820-reserved

2020-02-06 Thread Jan Beulich
Checking just the first and last page is not sufficient (and redundant for single-page regions). As we don't need to care about IA64 anymore, use an x86-specific function to get this done without looping over each individual page. Signed-off-by: Jan Beulich ---