Date: Fri, 18 Aug 2023 07:41:53 GMT From: Corvin =?utf-8?Q?K=C3=B6hne?= <corvink@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 50734f2ba36b - stable/13 - bhyve: pass address of OpRegion to the guest Message-ID: <202308180741.37I7frnQ066993@gitrepo.freebsd.org>
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The branch stable/13 has been updated by corvink: URL: https://cgit.FreeBSD.org/src/commit/?id=50734f2ba36bb79d8472a71e6bd0ebb5399786a8 commit 50734f2ba36bb79d8472a71e6bd0ebb5399786a8 Author: Corvin Köhne <corvink@FreeBSD.org> AuthorDate: 2023-05-10 11:44:28 +0000 Commit: Corvin Köhne <corvink@FreeBSD.org> CommitDate: 2023-08-18 07:32:08 +0000 bhyve: pass address of OpRegion to the guest Don't allow access to the physical ASLS register. It contains a host address which is meaningless for the guest. Additionally, it allows the guest to safely rewrite this register. This is the last commit required for GVT-d. Nevertheless, it might not work due to missing firmware support. MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D26209 (cherry picked from commit 71fb2dcb0023d49fc048e1f7b610ad05bd2efc32) --- usr.sbin/bhyve/pci_gvt-d.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/usr.sbin/bhyve/pci_gvt-d.c b/usr.sbin/bhyve/pci_gvt-d.c index 4616bc84d275..35c7f30dd292 100644 --- a/usr.sbin/bhyve/pci_gvt-d.c +++ b/usr.sbin/bhyve/pci_gvt-d.c @@ -256,7 +256,10 @@ gvt_d_setup_opregion(struct pci_devinst *const pi) memcpy(opregion->gva, opregion->hva, opregion->len); - return (0); + pci_set_cfgdata32(pi, PCIR_ASLS_CTL, opregion->gpa); + + return (set_pcir_handler(sc, PCIR_ASLS_CTL, 4, passthru_cfgread_emulate, + passthru_cfgwrite_emulate)); } static int
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