Date: Tue, 24 Aug 2021 18:29:15 GMT From: Gordon Tetlow <gordon@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 4f590ee3ed7e - releng/13.0 - Fix NVMe iovec construction for large IOs. Message-ID: <202108241829.17OITF8H023876@gitrepo.freebsd.org>
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The branch releng/13.0 has been updated by gordon: URL: https://cgit.FreeBSD.org/src/commit/?id=4f590ee3ed7eb15cb3583f5fa1af75f0f45a475c commit 4f590ee3ed7eb15cb3583f5fa1af75f0f45a475c Author: Gordon Tetlow <gordon@FreeBSD.org> AuthorDate: 2021-08-24 17:28:07 +0000 Commit: Gordon Tetlow <gordon@FreeBSD.org> CommitDate: 2021-08-24 17:28:07 +0000 Fix NVMe iovec construction for large IOs. Approved by: so Security: EN-21:25.bhyve --- usr.sbin/bhyve/pci_nvme.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/usr.sbin/bhyve/pci_nvme.c b/usr.sbin/bhyve/pci_nvme.c index 24f401630d6d..bd21819f0607 100644 --- a/usr.sbin/bhyve/pci_nvme.c +++ b/usr.sbin/bhyve/pci_nvme.c @@ -1976,7 +1976,7 @@ nvme_write_read_blockif(struct pci_nvme_softc *sc, /* PRP2 is pointer to a physical region page list */ while (bytes) { /* Last entry in list points to the next list */ - if (prp_list == last) { + if ((prp_list == last) && (bytes > PAGE_SIZE)) { uint64_t prp = *prp_list; prp_list = paddr_guest2host(vmctx, prp,
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