From: Juergen Gross <jgross@suse.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: wei.liu2@citrix.com, George.Dunlap@eu.citrix.com,
andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com,
Dario Faggioli <dfaggioli@suse.com>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH RFC v2 10/12] x86: allocate per-vcpu stacks for interrupt entries
Date: Fri, 9 Feb 2018 13:35:22 +0100 [thread overview]
Message-ID: <df54ec79-449d-daf2-fd67-c0b82bfb7f1e@suse.com> (raw)
In-Reply-To: <5A70A01402000078001A3C30@prv-mh.provo.novell.com>
On 30/01/18 16:40, Jan Beulich wrote:
>>>> On 22.01.18 at 13:32, <jgross@suse.com> wrote:
>> @@ -37,10 +52,24 @@ struct vcpu;
>>
>> struct cpu_info {
>> struct cpu_user_regs guest_cpu_user_regs;
>> - unsigned int processor_id;
>> - struct vcpu *current_vcpu;
>> - unsigned long per_cpu_offset;
>> - unsigned long cr4;
>> + union {
>> + /* per physical cpu mapping */
>> + struct {
>> + struct vcpu *current_vcpu;
>> + unsigned long per_cpu_offset;
>> + unsigned long cr4;
>> + };
>> + /* per vcpu mapping (xpti) */
>> + struct {
>> + unsigned long pad1;
>> + unsigned long pad2;
>> + unsigned long stack_bottom_cpu;
>> + };
>
> In order to avoid accidental use in the wrong context as much as
> possible, I think you want to name both structures.
I'd like to leave it as is in order to make a possible backport much
more easier.
Juergen
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next prev parent reply other threads:[~2018-02-09 12:35 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-22 12:32 [PATCH RFC v2 00/12] xen/x86: use per-vcpu stacks for 64 bit pv domains Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 01/12] x86: cleanup processor.h Juergen Gross
2018-01-22 12:52 ` Jan Beulich
[not found] ` <5A65ECA502000078001A111C@suse.com>
2018-01-22 14:10 ` Juergen Gross
2018-01-22 14:25 ` Andrew Cooper
2018-01-22 14:32 ` Jan Beulich
2018-01-22 12:32 ` [PATCH RFC v2 02/12] x86: don't use hypervisor stack size for dumping guest stacks Juergen Gross
2018-01-23 9:26 ` Jan Beulich
[not found] ` <5A670DEF02000078001A16AF@suse.com>
2018-01-23 9:58 ` Juergen Gross
2018-01-23 10:11 ` Jan Beulich
[not found] ` <5A67187C02000078001A1742@suse.com>
2018-01-23 10:19 ` Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 03/12] x86: do a revert of e871e80c38547d9faefc6604532ba3e985e65873 Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 04/12] x86: revert 5784de3e2067ed73efc2fe42e62831e8ae7f46c4 Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 05/12] x86: don't access saved user regs via rsp in trap handlers Juergen Gross
2018-01-30 14:49 ` Jan Beulich
[not found] ` <5A70941B02000078001A3BF0@suse.com>
2018-01-30 16:33 ` Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 06/12] x86: add a xpti command line parameter Juergen Gross
2018-01-30 15:39 ` Jan Beulich
[not found] ` <5A709FDF02000078001A3C2C@suse.com>
2018-01-30 16:51 ` Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 07/12] x86: allow per-domain mappings without NX bit or with specific mfn Juergen Gross
2018-01-29 17:06 ` Jan Beulich
[not found] ` <5A6F62B602000078001A3810@suse.com>
2018-01-30 8:02 ` Juergen Gross
2018-01-30 8:41 ` Jan Beulich
2018-01-31 10:30 ` Jan Beulich
2018-01-22 12:32 ` [PATCH RFC v2 08/12] xen/x86: use dedicated function for tss initialization Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 09/12] x86: enhance syscall stub to work in per-domain mapping Juergen Gross
2018-01-30 15:11 ` Jan Beulich
[not found] ` <5A70991902000078001A3C16@suse.com>
2018-01-30 16:50 ` Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 10/12] x86: allocate per-vcpu stacks for interrupt entries Juergen Gross
2018-01-30 15:40 ` Jan Beulich
2018-02-09 12:35 ` Juergen Gross [this message]
2018-02-13 9:10 ` Jan Beulich
[not found] ` <5A70A01402000078001A3C30@suse.com>
2018-01-30 17:12 ` Juergen Gross
2018-01-31 10:18 ` Jan Beulich
2018-01-22 12:32 ` [PATCH RFC v2 11/12] x86: modify interrupt handlers to support stack switching Juergen Gross
2018-01-30 16:07 ` Jan Beulich
[not found] ` <5A70A63D02000078001A3C7C@suse.com>
2018-01-30 17:19 ` Juergen Gross
2018-01-31 10:36 ` Jan Beulich
[not found] ` <5A71AA4202000078001A3F56@suse.com>
2018-02-02 15:42 ` Juergen Gross
2018-01-22 12:32 ` [PATCH RFC v2 12/12] x86: activate per-vcpu stacks in case of xpti Juergen Gross
2018-01-30 16:33 ` Jan Beulich
[not found] ` <5A70AC7F02000078001A3CA6@suse.com>
2018-01-30 17:33 ` Juergen Gross
2018-01-31 10:40 ` Jan Beulich
2018-01-22 12:50 ` [PATCH RFC v2 00/12] xen/x86: use per-vcpu stacks for 64 bit pv domains Jan Beulich
[not found] ` <5A65EC0A02000078001A1118@suse.com>
2018-01-22 14:18 ` Juergen Gross
2018-01-22 14:22 ` Jan Beulich
[not found] ` <5A6601D302000078001A1230@suse.com>
2018-01-22 14:38 ` Juergen Gross
2018-01-22 14:48 ` Jan Beulich
[not found] ` <5A6607DB02000078001A127B@suse.com>
2018-01-22 15:00 ` Juergen Gross
2018-01-22 16:51 ` Jan Beulich
2018-01-22 18:39 ` Andrew Cooper
2018-01-22 18:48 ` George Dunlap
2018-01-22 19:02 ` Andrew Cooper
2018-01-23 8:36 ` Jan Beulich
2018-01-23 11:23 ` Andrew Cooper
2018-01-23 11:06 ` George Dunlap
2018-01-23 6:34 ` Juergen Gross
2018-01-23 7:21 ` Juergen Gross
2018-01-23 8:53 ` Jan Beulich
[not found] ` <5A67061F02000078001A1669@suse.com>
2018-01-23 9:24 ` Juergen Gross
2018-01-23 9:31 ` Jan Beulich
[not found] ` <5A670F0E02000078001A16C9@suse.com>
2018-01-23 10:10 ` Juergen Gross
2018-01-23 11:45 ` Andrew Cooper
2018-01-23 13:31 ` Juergen Gross
2018-01-23 13:24 ` Dario Faggioli
2018-01-23 16:45 ` George Dunlap
2018-01-23 16:56 ` Juergen Gross
2018-01-23 17:33 ` George Dunlap
2018-01-24 7:37 ` Jan Beulich
[not found] ` <5A6624A602000078001A1375@suse.com>
2018-01-23 5:50 ` Juergen Gross
2018-01-23 8:40 ` Jan Beulich
[not found] ` <5A67030F02000078001A164B@suse.com>
2018-01-23 9:45 ` Juergen Gross
2018-01-22 21:45 ` Konrad Rzeszutek Wilk
2018-01-23 6:38 ` Juergen Gross
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