linux_dsm_epyc7002/include/xen/interface
Paul Durrant 1ee54195a3 xen/interface: re-define FRONT/BACK_RING_ATTACH()
Currently these macros are defined to re-initialize a front/back ring
(respectively) to values read from the shared ring in such a way that any
requests/responses that are added to the shared ring whilst the front/back
is detached will be skipped over. This, in general, is not a desirable
semantic since most frontend implementations will eventually block waiting
for a response which would either never appear or never be processed.

Since the macros are currently unused, take this opportunity to re-define
them to re-initialize a front/back ring using specified values. This also
allows FRONT/BACK_RING_INIT() to be re-defined in terms of
FRONT/BACK_RING_ATTACH() using a specified value of 0.

NOTE: BACK_RING_ATTACH() will be used directly in a subsequent patch.

Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:44:42 +01:00
..
hvm xen/pvh: Add memory map pointer to hvm_start_info struct 2018-12-13 13:41:49 -05:00
io xen/interface: re-define FRONT/BACK_RING_ATTACH() 2019-12-20 13:44:42 +01:00
callback.h ia64/xen: Remove Xen support for ia64 2013-12-10 16:11:07 -08:00
elfnote.h xen/pvh: Import PVH-related Xen public interfaces 2017-02-07 08:07:01 -05:00
event_channel.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
features.h xen/pvh: Indicate XENFEAT_linux_rsdp_unrestricted to Xen 2018-04-10 09:22:22 -04:00
grant_table.h scripts/spelling.txt: add "an union" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
memory.h x86/xen: Move pv specific parts of arch/x86/xen/mmu.c to mmu_pv.c 2018-09-03 16:50:33 +02:00
nmi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
physdev.h xen: add support for MSI message groups 2014-03-18 14:40:09 +00:00
platform.h xen: introduce XENPF_settime64 2015-12-21 14:40:57 +00:00
sched.h xen: Sync xen header 2016-09-05 13:52:37 +02:00
vcpu.h x86/xen/time: setup vcpu 0 time info page 2017-11-08 16:33:14 -05:00
version.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-mca.h xen/mcelog: add PPIN to record when available 2019-11-14 10:01:57 +01:00
xen.h xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE 2018-05-14 15:25:37 +02:00
xenpmu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00