Bhyve uses an io port range of [ 0x2000, 0x10000 ] [1]. At the moment, EDKII is using a subset of this range [ 0xC000, 0x10000 ] [2]. Even though the EDKII range doesn't exceed the bhyve range, it's causing issues on some guests like OpenBSD [3]. We don't know why it's causing issues yet. However, using the same IO port range in EDKII fixes the issue and is a good idea anyway.
[1] https://github.com/freebsd/freebsd-src/blob/82ea0132c8b17a7a6067c8a36c6434e587ede6de/usr.sbin/bhyve/pci_emul.c#L133-L134 [2] https://github.com/tianocore/edk2/blob/fb044b7fe893a4545995bfe2701fd38e593355d9/OvmfPkg/Bhyve/PlatformPei/Platform.c#L156-L157 [3] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=274389 Signed-off-by: Corvin Köhne <corv...@freebsd.org> Reviewed-by: Laszlo Ersek <ler...@redhat.com> Reviewed-by: Rebecca Cran <rebe...@bsdio.com> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> Cc: Gerd Hoffmann <kra...@redhat.com> Cc: Liming Gao <gaolim...@byosoft.com.cn> Cc: Jiewen Yao <jiewen....@intel.com> --- OvmfPkg/Bhyve/PlatformPei/Platform.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/OvmfPkg/Bhyve/PlatformPei/Platform.c b/OvmfPkg/Bhyve/PlatformPei/Platform.c index f6d9a9038e12..bd1b22a9476e 100644 --- a/OvmfPkg/Bhyve/PlatformPei/Platform.c +++ b/OvmfPkg/Bhyve/PlatformPei/Platform.c @@ -153,8 +153,8 @@ MemMapInitialization ( UINT64 PciIoSize; RETURN_STATUS PcdStatus; - PciIoBase = 0xC000; - PciIoSize = 0x4000; + PciIoBase = 0x2000; + PciIoSize = 0xE000; // // Create Memory Type Information HOB -- 2.42.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#111461): https://edk2.groups.io/g/devel/message/111461 Mute This Topic: https://groups.io/mt/102703362/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
