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| author | Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> | 2021-01-29 03:48:32 +0200 |
|---|---|---|
| committer | Julien Grall <jgrall@amazon.com> | 2021-01-29 16:18:15 +0000 |
| commit | 1723e4a08c596b055680aa8aac104aadd666be39 (patch) | |
| tree | dcfada84734bdb38d3b06261bd48c2c6aab91936 /MAINTAINERS | |
| parent | 97ea846b07b70474a3c86013c65819a47aa2c48f (diff) | |
| download | xen-1723e4a08c596b055680aa8aac104aadd666be39.tar.gz | |
xen/ioreq: Make x86's IOREQ feature common
As a lot of x86 code can be re-used on Arm later on, this patch
moves previously prepared IOREQ support to the common code
(the code movement is verbatim copy).
The "legacy" mechanism of mapping magic pages for the IOREQ servers
remains x86 specific and not exposed to the common code.
The common IOREQ feature is supposed to be built with IOREQ_SERVER
option enabled, which is selected for x86's config HVM for now.
In order to avoid having a gigantic patch here, the subsequent
patches will update remaining bits in the common code step by step:
- Make IOREQ related structs/materials common
- Drop the "hvm" prefixes and infixes
- Remove layering violation by moving corresponding fields
out of *arch.hvm* or abstracting away accesses to them
Introduce asm/ioreq.h wrapper to be included by common ioreq.h
instead of asm/hvm/ioreq.h to avoid HVM-ism in the code common.
Also include <xen/domain_page.h> which will be needed on Arm
to avoid touch the common code again when introducing Arm specific bits.
This support is going to be used on Arm to be able run device
emulator outside of Xen hypervisor.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
CC: Julien Grall <julien.grall@arm.com>
[On Arm only]
Tested-by: Wei Chen <Wei.Chen@arm.com>
Diffstat (limited to 'MAINTAINERS')
| -rw-r--r-- | MAINTAINERS | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 8ce2ad5187..3a5c481543 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -339,6 +339,13 @@ X: xen/drivers/passthrough/vtd/ X: xen/drivers/passthrough/device_tree.c F: xen/include/xen/iommu.h +I/O EMULATION (IOREQ) +M: Paul Durrant <paul@xen.org> +S: Supported +F: xen/common/ioreq.c +F: xen/include/xen/ioreq.h +F: xen/include/public/hvm/ioreq.h + KCONFIG M: Doug Goldstein <cardoe@cardoe.com> S: Supported @@ -555,7 +562,7 @@ F: xen/arch/x86/hvm/ioreq.c F: xen/include/asm-x86/hvm/emulate.h F: xen/include/asm-x86/hvm/io.h F: xen/include/asm-x86/hvm/ioreq.h -F: xen/include/public/hvm/ioreq.h +F: xen/include/asm-x86/ioreq.h X86 MEMORY MANAGEMENT M: Jan Beulich <jbeulich@suse.com> |