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Re: [PATCH 15/23] xen/xsm: Add XSM_HW_PRIV
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Jason Andryuk <jason.andryuk@xxxxxxx>
- Date: Mon, 17 Mar 2025 11:04:19 -0400
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Mon, 17 Mar 2025 15:04:43 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 2025-03-17 10:22, Jan Beulich wrote:
On 06.03.2025 23:03, Jason Andryuk wrote:
--- a/xen/include/xsm/dummy.h
+++ b/xen/include/xsm/dummy.h
@@ -95,7 +95,11 @@ static always_inline int xsm_default_action(
return 0;
fallthrough;
case XSM_PRIV:
- if ( is_control_domain(src) )
+ case XSM_HW_PRIV:
+ if ( is_control_domain(src) && action != XSM_HW_PRIV )
+ return 0;
+ if ( is_hardware_domain(src) &&
+ (action == XSM_HW_PRIV || action == XSM_DM_PRIV) )
return 0;
return -EPERM;
Hmm. Isn't DM_PRIV a property applying to the control domain (besides
any stub domains), but not the hardware one?
I ran QEMU in hardware domain to provide devices to a domU. I thought
QEMU would better run in hardware domain than control domain.
Regards,
Jason
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