Hi Jiewen, We patched Cloud Hypervisor to support both I/O ports for at least two versions. And of course at some point users will have to rely on latest CloudHv binary (which we always build).
One improvement could be to retrieve the I/O ports addresses from the FADT table. Do you know if there's some code already doing that in OVMF? Thanks, Sebastien ________________________________ From: Yao, Jiewen <jiewen....@intel.com> Sent: Tuesday, September 6, 2022 4:27 PM To: Boeuf, Sebastien <sebastien.bo...@intel.com> Cc: Justen, Jordan L <jordan.l.jus...@intel.com>; kra...@redhat.com <kra...@redhat.com>; devel@edk2.groups.io <devel@edk2.groups.io> Subject: RE: [PATCH v2] OvmfPkg: Update I/O port related to ACPI devices for CloudHv This seems a big incompatible change. I feel this is weird to hardcode the configuration here. How the OVMF binary knows it runs on a new CloudHv or old CloudHv? Can we have a mechanism to detect the data at runtime? E.g. read some PCI register ? From: Boeuf, Sebastien <sebastien.bo...@intel.com> Sent: Tuesday, September 6, 2022 10:08 PM To: Yao, Jiewen <jiewen....@intel.com> Cc: Justen, Jordan L <jordan.l.jus...@intel.com>; kra...@redhat.com; devel@edk2.groups.io Subject: Re: [PATCH v2] OvmfPkg: Update I/O port related to ACPI devices for CloudHv Hi Jiewen, Do you think this could be merged? Thanks, Sebastien ________________________________ From: Boeuf, Sebastien <sebastien.bo...@intel.com<mailto:sebastien.bo...@intel.com>> Sent: Friday, August 19, 2022 11:59 AM To: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>> Cc: Yao, Jiewen <jiewen....@intel.com<mailto:jiewen....@intel.com>>; Justen, Jordan L <jordan.l.jus...@intel.com<mailto:jordan.l.jus...@intel.com>>; kra...@redhat.com<mailto:kra...@redhat.com> <kra...@redhat.com<mailto:kra...@redhat.com>>; Boeuf, Sebastien <sebastien.bo...@intel.com<mailto:sebastien.bo...@intel.com>> Subject: [PATCH v2] OvmfPkg: Update I/O port related to ACPI devices for CloudHv From: Sebastien Boeuf <sebastien.bo...@intel.com<mailto:sebastien.bo...@intel.com>> Both ACPI shutdown and ACPI PM timer devices has been moved to different port addresses in the latest version of Cloud Hypervisor. These changes need to be reflected on the OVMF firmware. Acked-by: Gerd Hoffmann <kra...@redhat.com<mailto:kra...@redhat.com>> Signed-off-by: Sebastien Boeuf <sebastien.bo...@intel.com<mailto:sebastien.bo...@intel.com>> --- OvmfPkg/Include/IndustryStandard/CloudHv.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/OvmfPkg/Include/IndustryStandard/CloudHv.h b/OvmfPkg/Include/IndustryStandard/CloudHv.h index d31ecc9eec..527c236f48 100644 --- a/OvmfPkg/Include/IndustryStandard/CloudHv.h +++ b/OvmfPkg/Include/IndustryStandard/CloudHv.h @@ -16,12 +16,12 @@ // // ACPI timer address // -#define CLOUDHV_ACPI_TIMER_IO_ADDRESS 0xb008 +#define CLOUDHV_ACPI_TIMER_IO_ADDRESS 0x0608 // // ACPI shutdown device address // -#define CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS 0x03c0 +#define CLOUDHV_ACPI_SHUTDOWN_IO_ADDRESS 0x0600 // // 32-bit MMIO memory hole base address -- 2.34.1 --------------------------------------------------------------------- Intel Corporation SAS (French simplified joint stock company) Registered headquarters: "Les Montalets"- 2, rue de Paris, 92196 Meudon Cedex, France Registration Number: 302 456 199 R.C.S. NANTERRE Capital: 5 208 026.16 Euros This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#93239): https://edk2.groups.io/g/devel/message/93239 Mute This Topic: https://groups.io/mt/93121228/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
