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Re: [PATCH v2 2/3] x86/emul: Rename the x86_seg_* system segments
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 18 Aug 2026 08:31:27 +0200
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- Cc: Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Teddy Astie <teddy.astie@xxxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 18 Aug 2026 06:31:32 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 17.08.2026 14:11, Andrew Cooper wrote:
> @@ -131,18 +131,21 @@ int arch_set_info_hvm_guest(struct vcpu *v, const
> struct vcpu_hvm_context *ctx)
> #define SEG(s, r) ({ \
> s = (struct segment_register) \
> { 0, { (r)->s ## _ar }, (r)->s ## _limit, (r)->s ## _base }; \
> - /* Set accessed / busy bit for present segments. */ \
> + /* Set accessed bit for present segments. */ \
> if ( (s).p ) \
> - (s).type |= (x86_seg_ ## s != x86_seg_tr ? 1 : 2); \
>From this, ...
> + (s).type |= 2; \
... this wants to be 1, while ...
> check_segment(&(s), x86_seg_ ## s); })
>
> rc = SEG(cs, regs);
> rc |= SEG(ds, regs);
> rc |= SEG(ss, regs);
> rc |= SEG(es, regs);
> - rc |= SEG(tr, regs);
> #undef SEG
>
> + tr = (struct segment_register){
> + 0, { regs->tr_ar | 1 /* Busy */ }, regs->tr_limit, regs->tr_base
> };
... this wants to be 2. Then:
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
Jan
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