Date: Thu, 16 Jul 2020 05:24:12 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 222996] FreeBSD 11.1-12 on Hyper-V with PCI Express Pass Through Message-ID: <bug-222996-27103-IXO3xJwgJ1@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-222996-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-222996-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222996 --- Comment #35 from Dexuan Cui <decui@microsoft.com> --- (In reply to Wei Hu from comment #34) It looks the "bad" MMIO range is from the graphics device, i.e. the legacy PCI graphics device in a Gen-1 VM, or the UEFI graphics deivce in a Gen-2 VM, or the synthetic Hyper-V graphics device, and we should make sure the MMIO range used by the Hyper-V PCIB driver doesn't conflict with the one used by the related graphics device driver. In Linux the MMIO range used by the graphics devices is reported by "screen_info.lfb_base" and "screen_info.lfb_size". I guess FreeBSD should have something similar, e.g. how does the UEFI graphics device driver in FreeBSD gets the MMIO range? -- You are receiving this mail because: You are the assignee for the bug.help
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