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[12.32.117.8]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-201cd1aa5e2sm19416755ad.176.2024.08.13.18.17.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Aug 2024 18:17:13 -0700 (PDT) Message-ID: <58a179b1-9e92-461a-8902-31bd0a8c057e@FreeBSD.org> Date: Tue, 13 Aug 2024 18:17:12 -0700 List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: git: f44ff2aba2d6 - main - bhyve: Treat the COMMAND register for PCI passthru devices as emulated Content-Language: en-US To: John Baldwin , src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org References: <202407311450.46VEoql9014730@gitrepo.freebsd.org> From: Navdeep Parhar Autocrypt: addr=np@FreeBSD.org; keydata= xsDiBEosaGcRBACOXnXquGEW53BjpMt2jViod/TUf1xgjMekcbDxqOODPeX7eYfrwJ8G6BCN OpGjBmWDu/JcNj4Z+gmTilJ6WLZQ7ecFZfEeO91pt6ys0cyWh0xfO+/mT83D7W81S/kqrJBk QbBIdV6LumevdErHo272r8RcMELC4Ru87eRtX3hmEwCgnnGNJMpQFUfYTt5XE7nY0yQoeV8D /0OcWmJbEZWxX9O7AuliCe3zd2Dw0B4LB9SZ2Dis7+gpVd3xVgYnt5wRE9kM+ThgrMA/wqr8 07qmEG6bcfUsfwwGN9YUtNF3xAN07cXTs026sCIFNZK816PrThBzCgkwR7pDpkMzGWIBr8Wi XXy0eB+JlQ6UV4PEiXuZ5ulzP0b1A/9CZm3wJfrNC0r1gMyrfVedg4zwKU997bmPLGcYs+rW XDTI9CvMseOUYn4CoDZQCp/9zxuHK+VU7Y/w0c/hVE5ERACSn4SjN2unEDstK9njZBMHEPVk Ae/YvSG5cmc97SHlVE+eu/bbLKcvFb6rRLPOaVFQJMJA2VJEGWtYhvP7Zc0fTmF2ZGVlcCBQ YXJoYXIgPG5wQEZyZWVCU0Qub3JnPsJgBBMRAgAgBQJKLGhnAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQyrIrk6yriBL0MQCfUJOiS2PbJFDeiav1ylcXXwfpggAAoJRoS7GDENGy M4BzjJ4b0ptZqTLRzsFNBEosaGcQCACFCWs47SL4DQA6bNDlVJu4w8wLf8uVOyatuGmdXX8Y /OTVQJgA3vS+ODNVJCxhKVlvhcn7bhBdGdWKS9K+lr8+eEvr4hf2bQpesoHC+uFgKyILkCBN L8raixbhysyq0pfZWWDJMyn+G42BG1yJJi+bykygdpYnbIVA8dYHmBibI8mkPKOHSohjXT1S RfGGn+l1w54OO4NlJhCXMkjTA/Z9Bt4XeaiR85uJi0UUfV8FGZHhgSvT+/P1xIvz+nytuehS P/QLXl13CtAG/nKVkAcZnsT/3NrJ4Z2r45k+c50Wrf210scAaBogrrV5eIHfNGgOANApN8+8 vj+aXO4pXRuXAAMFB/44ea8rd+P5N3OMrfuM8i91Qe1bJ+BIoroKPOr8jvCry0h3QpdfLKUN IgaqbS3JZeBJ8HHnWSGCF+o6H5gzRe1hvylPEclLPDCuPe7T746h9Mzejf2hNDJvOg+BuweD ZW4KhovVbdS+syJEvpGF4bO8qgHT2CKgruXSHbFetdQWbkM0rfMmTuo0GcR2BEVrPb/SPFv6 4ZZyAZzmnGO4vT1bzClnTzJixrDpH74M3vSEYegMB4KdbLYBi8Jx4QUKgVEhJHjJubKWX4et yU/uuehOC3xYrmr1UXvsom3U8r36Dvdo77Yr3dgDVXa7bolNx0TIhdWxZI+R4z9E75QY+/wg wkkEGBECAAkFAkosaGcCGwwACgkQyrIrk6yriBI+JQCfUxgyqGtzZvLh5Al7gsTmRc11PLwA niD3NfWGRcO2+9uxSSQqRH1ywC4n In-Reply-To: <202407311450.46VEoql9014730@gitrepo.freebsd.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.09 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; FORGED_SENDER(0.30)[np@FreeBSD.org,nparhar@gmail.com]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; MIME_GOOD(-0.10)[text/plain]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : SPF not aligned (relaxed), DKIM not aligned (relaxed),none]; XM_UA_NO_VERSION(0.01)[]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; RCVD_TLS_LAST(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[gmail.com:+]; MLMMJ_DEST(0.00)[dev-commits-src-all@freebsd.org,dev-commits-src-main@freebsd.org]; RCVD_COUNT_TWO(0.00)[2]; FROM_NEQ_ENVFROM(0.00)[np@FreeBSD.org,nparhar@gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::632:from]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] X-Rspamd-Queue-Id: 4Wk9Mv2D3Gz4dZ1 On 7/31/24 7:50 AM, John Baldwin wrote: > The branch main has been updated by jhb: > > URL: https://cgit.FreeBSD.org/src/commit/?id=f44ff2aba2d64d1d9312cb55008dc90275ccdc04 > > commit f44ff2aba2d64d1d9312cb55008dc90275ccdc04 > Author: John Baldwin > AuthorDate: 2024-07-31 14:50:33 +0000 > Commit: John Baldwin > CommitDate: 2024-07-31 14:50:33 +0000 > > bhyve: Treat the COMMAND register for PCI passthru devices as emulated > > Don't pass through writes of the command register through to the > physical device. These registers do not need to be in sync, and in > some cases (e.g. when the guest is sizing the BAR and temporarily > disables decoding), the states need to diverge. This seems to break MSI-X interrupts for a device that is passed through to a VM. That is, the device generates an interrupt but the driver in the VM never receives it. Reverting this change fixes the problem. Regards, Navdeep