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author | Shuo Liu <shuo.a.liu@intel.com> | 2021-02-07 06:10:24 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-09 12:58:18 +0300 |
commit | 7995700e65f1d5c97ee56b7e9c8f68d2b0fac253 (patch) | |
tree | 63114736f11f20f81fc12645bacde3fced13c988 /arch/x86/include/asm/acrn.h | |
parent | c619a804cc43345be3a1a1c4b46f72a3525cf1af (diff) | |
download | linux-7995700e65f1d5c97ee56b7e9c8f68d2b0fac253.tar.xz |
x86/acrn: Introduce acrn_{setup, remove}_intr_handler()
The ACRN Hypervisor builds an I/O request when a trapped I/O access
happens in User VM. Then, ACRN Hypervisor issues an upcall by sending
a notification interrupt to the Service VM. HSM in the Service VM needs
to hook the notification interrupt to handle I/O requests.
Notification interrupts from ACRN Hypervisor are already supported and
a, currently uninitialized, callback called.
Export two APIs for HSM to setup/remove its callback.
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Fengwei Yin <fengwei.yin@intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Originally-by: Yakui Zhao <yakui.zhao@intel.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-3-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/include/asm/acrn.h')
-rw-r--r-- | arch/x86/include/asm/acrn.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acrn.h b/arch/x86/include/asm/acrn.h new file mode 100644 index 000000000000..ff259b69cde7 --- /dev/null +++ b/arch/x86/include/asm/acrn.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_ACRN_H +#define _ASM_X86_ACRN_H + +void acrn_setup_intr_handler(void (*handler)(void)); +void acrn_remove_intr_handler(void); + +#endif /* _ASM_X86_ACRN_H */ |