Message ID | 20190405132521.6630-3-aisaila@bitdefender.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
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DIR:OUT; SFP:1102; SCL:1; SRVR:VI1PR0202MB3551; H:VI1PR0202MB2928.eurprd02.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: bitdefender.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: vwadOkniOy0Xbfayq1CGwa4y0q7B9bLIj6vMdOK49if1QaHvmc7zfKMdwSv1Ig8m6jhDDmOhkpwwYKeSgSU1F2FNi2HGcUSsvFOnnpHN4AmKLCH5HWe2SrVztHtemFwgr2Nl6NhC7YOYtJSV9ethKgrVniR6O+ZfBtl2y7UefotPb/e8OlET1S8dEFEPXEffqonvNiQ5PLxI2xRMx+xdz6iSxOgUzka6DMHHbhLzmjElw9pMIiJTpzDQyLVIl47HkgilPKyaG6tgs5CJ98F7B1DudPZbtJFDQObDaKK7DYEDt505nTTEcptm2M+5TGjlUzq372/JuOQHBkoccnJuUrr/mtmUlNq5reX2N9trWakFAo2XODpEgJRaX3ouLcTwVh7+iGCUr+CXFQh02keiPHlW2aPvIRWW/hNOpWd2nsE= MIME-Version: 1.0 X-OriginatorOrg: bitdefender.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1a65e5b2-8637-4816-f2c5-08d6b9ca33f3 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Apr 2019 13:25:42.8604 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 487baf29-f1da-469a-9221-243f830c36f3 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0202MB3551 Subject: [Xen-devel] [PATCH v2 3/3] x86/mm: Fix p2m_set_suppress_ve X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion <xen-devel.lists.xenproject.org> List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe> List-Post: <mailto:xen-devel@lists.xenproject.org> List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help> List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe> Cc: "tamas@tklengyel.com" <tamas@tklengyel.com>, "wei.liu2@citrix.com" <wei.liu2@citrix.com>, "rcojocaru@bitdefender.com" <rcojocaru@bitdefender.com>, "george.dunlap@eu.citrix.com" <george.dunlap@eu.citrix.com>, "andrew.cooper3@citrix.com" <andrew.cooper3@citrix.com>, "jbeulich@suse.com" <jbeulich@suse.com>, Alexandru Stefan ISAILA <aisaila@bitdefender.com>, "roger.pau@citrix.com" <roger.pau@citrix.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org> X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
[v2,1/3] x86/mm: Introduce altp2m_get_gfn_type_access
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diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c index 1f852694ff..6dee0052f8 100644 --- a/xen/arch/x86/mm/p2m.c +++ b/xen/arch/x86/mm/p2m.c @@ -2974,6 +2974,7 @@ int p2m_set_suppress_ve(struct domain *d, gfn_t gfn, bool suppress_ve, p2m_access_t a; p2m_type_t t; int rc; + bool found_in_hostp2m; if ( altp2m_idx > 0 ) { @@ -2991,7 +2992,7 @@ int p2m_set_suppress_ve(struct domain *d, gfn_t gfn, bool suppress_ve, if ( ap2m ) p2m_lock(ap2m); - mfn = p2m->get_entry(p2m, gfn, &t, &a, 0, NULL, NULL); + mfn = altp2m_get_gfn_type_access(p2m, gfn, &t, &a, NULL, &found_in_hostp2m); if ( !mfn_valid(mfn) ) { rc = -ESRCH;
On a new altp2m view the p2m_set_suppress_ve() func will fail with invalid mfn from p2m->get_entry() if p2m->set_entry() was not called before. This patch solves the problem by getting the mfn from hostp2m. Signed-off-by: Alexandru Isaila <aisaila@bitdefender.com> --- xen/arch/x86/mm/p2m.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)