From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Daniel Kiper <daniel.kiper@oracle.com>, Juergen Gross <jgross@suse.com>
Cc: hans@knorrie.org, grub-devel@gnu.org, xen-devel@lists.xen.org,
phcoder@gmail.com
Subject: Re: [PATCH v2 10/18] xen: setup hypercall page for PVH
Date: Fri, 19 Oct 2018 13:48:55 +0100 [thread overview]
Message-ID: <dea68a74-9296-9bfa-766c-c5b08678532e__12436.2276205376$1539953267$gmane$org@citrix.com> (raw)
In-Reply-To: <20181019123014.GG4422@olila.i.net-space.pl>
On 19/10/18 13:30, Daniel Kiper wrote:
> On Tue, Oct 09, 2018 at 01:03:09PM +0200, Juergen Gross wrote:
>> +
>> + __arg0 = a0;
>> + __arg1 = a1;
>> + __arg2 = a2;
>> + __arg3 = a3;
>> + __arg4 = a4;
>> + asm volatile ("call *%[callno]"
>> + : "=r" (__res), "+r" (__arg0), "+r" (__arg1), "+r" (__arg2),
>> + "+r" (__arg3), "+r" (__arg4)
>> + : [callno] "a" (&hypercall_page[callno])
>> + : "memory");
call hypercall_page + %c[offset]
passing [offset] "i" (callno * 32)
which gives you a direct call, rather than an indirect one.
~Andrew
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next prev parent reply other threads:[~2018-10-19 12:48 UTC|newest]
Thread overview: 148+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 11:02 [PATCH v2 00/18] xen: add pvh guest support Juergen Gross
2018-10-09 11:02 ` Juergen Gross
2018-10-09 11:03 ` [PATCH v2 01/18] xen: add some xen headers Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-18 13:45 ` Daniel Kiper
2018-10-18 14:04 ` Juergen Gross
2018-10-18 14:14 ` Daniel Kiper
2018-10-18 14:14 ` Daniel Kiper
2018-10-18 14:04 ` Juergen Gross
2018-10-18 13:45 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 02/18] loader/linux: support passing rsdp address via boot params Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-18 14:13 ` Daniel Kiper
2018-10-18 14:13 ` Daniel Kiper
2018-10-18 14:18 ` Juergen Gross
2018-10-18 14:18 ` Juergen Gross
2018-10-18 14:30 ` Daniel Kiper
2018-10-18 14:36 ` Juergen Gross
2018-10-18 14:36 ` Juergen Gross
2018-10-18 14:48 ` Daniel Kiper
2018-10-18 14:48 ` Daniel Kiper
2018-10-18 14:53 ` Juergen Gross
2018-10-18 14:53 ` Juergen Gross
2018-10-18 15:01 ` Daniel Kiper
2018-10-18 15:01 ` Daniel Kiper
2018-10-18 14:30 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 03/18] xen: carve out grant tab initialization into dedicated function Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-18 14:35 ` Daniel Kiper
2018-10-18 14:35 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 04/18] xen: prepare common code for Xen PVH support Juergen Gross
2018-10-18 14:59 ` Daniel Kiper
2018-10-18 14:59 ` Daniel Kiper
2018-10-18 15:39 ` Juergen Gross
2018-10-19 6:36 ` Juergen Gross
2018-10-19 6:36 ` [Xen-devel] " Juergen Gross
2018-10-18 15:39 ` Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-09 11:03 ` [PATCH v2 05/18] xen: add some dummy headers for PVH mode Juergen Gross
2018-10-18 15:19 ` Daniel Kiper
2018-10-18 15:19 ` Daniel Kiper
2018-10-18 15:40 ` Juergen Gross
2018-10-18 15:40 ` Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-09 11:03 ` [PATCH v2 06/18] xen: rearrange xen/init.c to prepare it for Xen " Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-18 17:55 ` Daniel Kiper
2018-10-18 17:55 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 07/18] xen: add PVH specific defines to offset.h Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-19 11:54 ` Daniel Kiper
2018-10-19 11:54 ` Daniel Kiper
2018-10-19 14:39 ` [Xen-devel] " Juergen Gross
2018-10-19 14:39 ` Juergen Gross
2018-10-09 11:03 ` [PATCH v2 08/18] xen: add basic hooks for PVH in current code Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-19 12:05 ` Daniel Kiper
2018-10-19 14:40 ` [Xen-devel] " Juergen Gross
2018-10-19 14:40 ` Juergen Gross
2018-10-19 12:05 ` Daniel Kiper
2018-10-19 15:33 ` [Xen-devel] " Roger Pau Monné
2018-10-19 15:52 ` Juergen Gross
2018-10-22 11:16 ` Daniel Kiper
2018-10-22 11:16 ` [Xen-devel] " Daniel Kiper
2018-10-22 11:18 ` Juergen Gross
2018-10-22 11:18 ` Juergen Gross
2018-10-19 15:52 ` Juergen Gross
2018-10-19 15:33 ` Roger Pau Monné
2018-10-09 11:03 ` [PATCH v2 09/18] xen: add PVH boot entry code Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-19 12:17 ` Daniel Kiper
2018-10-19 12:17 ` Daniel Kiper
2018-10-19 14:50 ` Juergen Gross
2018-10-19 14:50 ` [Xen-devel] " Juergen Gross
2018-10-22 11:18 ` Daniel Kiper
2018-10-22 11:18 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 10/18] xen: setup hypercall page for PVH Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-19 12:30 ` Daniel Kiper
2018-10-19 12:30 ` Daniel Kiper
2018-10-19 12:48 ` [Xen-devel] " Andrew Cooper
2018-10-19 12:48 ` Andrew Cooper [this message]
2018-10-19 15:01 ` Juergen Gross
2018-10-19 15:01 ` Juergen Gross
2018-10-19 15:40 ` Roger Pau Monné
2018-10-19 15:40 ` [Xen-devel] " Roger Pau Monné
2018-10-19 15:59 ` Juergen Gross
2018-10-19 15:59 ` [Xen-devel] " Juergen Gross
2018-10-09 11:03 ` [PATCH v2 11/18] xen: get memory map from hypervisor " Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-19 12:40 ` Daniel Kiper
2018-10-19 12:40 ` Daniel Kiper
2018-10-19 15:06 ` Juergen Gross
2018-10-19 15:06 ` [Xen-devel] " Juergen Gross
2018-10-09 11:03 ` [PATCH v2 12/18] xen: setup Xen specific data " Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-19 12:48 ` Daniel Kiper
2018-10-19 15:10 ` [Xen-devel] " Juergen Gross
2018-10-24 14:01 ` Juergen Gross
2018-10-24 14:01 ` [Xen-devel] " Juergen Gross
2018-10-19 15:10 ` Juergen Gross
2018-10-19 12:48 ` Daniel Kiper
2018-10-19 15:46 ` [Xen-devel] " Roger Pau Monné
2018-10-19 15:46 ` Roger Pau Monné
2018-10-19 16:10 ` Roger Pau Monné
2018-10-19 16:10 ` [Xen-devel] " Roger Pau Monné
2018-10-19 16:39 ` Juergen Gross
2018-10-19 16:39 ` [Xen-devel] " Juergen Gross
2018-10-29 12:57 ` Roger Pau Monné
2018-10-29 12:57 ` [Xen-devel] " Roger Pau Monné
2018-10-29 14:19 ` Juergen Gross
2018-10-29 14:19 ` [Xen-devel] " Juergen Gross
2018-10-30 11:23 ` Roger Pau Monné
2018-10-30 12:12 ` Juergen Gross
2018-10-30 12:12 ` [Xen-devel] " Juergen Gross
2018-10-30 11:23 ` Roger Pau Monné
2018-10-09 11:03 ` [PATCH v2 13/18] xen: init memory regions " Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-22 11:31 ` Daniel Kiper
2018-10-22 11:43 ` Juergen Gross
2018-10-22 12:08 ` Daniel Kiper
2018-10-22 12:08 ` Daniel Kiper
2018-10-22 11:43 ` Juergen Gross
2018-10-22 11:31 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 14/18] xenpvh: add build runes for grub-core Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-22 11:41 ` Daniel Kiper
2018-10-22 11:45 ` Juergen Gross
2018-10-22 11:45 ` Juergen Gross
2018-10-22 11:41 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 15/18] grub-module-verifier: Ignore all_video for xenpvh Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-22 11:45 ` Daniel Kiper
2018-10-22 11:45 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 16/18] xenpvh: support building a standalone image Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-22 11:56 ` Daniel Kiper
2018-10-22 11:56 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 17/18] xenpvh: support grub-install for xenpvh Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-22 12:01 ` Daniel Kiper
2018-10-22 12:01 ` Daniel Kiper
2018-10-09 11:03 ` [PATCH v2 18/18] xenpvh: add support to configure Juergen Gross
2018-10-09 11:03 ` Juergen Gross
2018-10-22 12:04 ` Daniel Kiper
2018-10-22 12:04 ` Daniel Kiper
2018-10-10 15:59 ` [Xen-devel] [PATCH v2 00/18] xen: add pvh guest support Juergen Gross
2018-10-10 15:59 ` Juergen Gross
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