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Fri, 04 Jun 2021 06:02:16 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 8a99b291-3166-4068-be37-957b581354d1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1622786536; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=52BTUe4jpk+WRPGPjfc9HUIe/qPIv/ZJBRtNKVKcEa4=; b=KCOLNc9rrbfAUNqoCLZgCTaMV9Hsq6OfO/Caxjo4dk5E5foJXWirfH3urL65K91EVUPsx+ KMZHhfwC1cI/BLRxuzv7bvznYMjMG2tS/IK/TMzV1EvoUnw2icN8XSOnQS8vgbJ/Lv1aay GrGRyNhbbVYqyC02FrfRe5ugRdpuU/w= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1622786536; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=52BTUe4jpk+WRPGPjfc9HUIe/qPIv/ZJBRtNKVKcEa4=; b=KCOLNc9rrbfAUNqoCLZgCTaMV9Hsq6OfO/Caxjo4dk5E5foJXWirfH3urL65K91EVUPsx+ KMZHhfwC1cI/BLRxuzv7bvznYMjMG2tS/IK/TMzV1EvoUnw2icN8XSOnQS8vgbJ/Lv1aay GrGRyNhbbVYqyC02FrfRe5ugRdpuU/w= From: Juergen Gross To: xen-devel@lists.xenproject.org Cc: julien@xen.org, Juergen Gross , Ian Jackson , Wei Liu Subject: [PATCH v2 1/6] tools/libs/guest: fix max_pfn setting in map_p2m() Date: Fri, 4 Jun 2021 08:02:09 +0200 Message-Id: <20210604060214.14924-2-jgross@suse.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210604060214.14924-1-jgross@suse.com> References: <20210604060214.14924-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) Content-Type: text/plain; charset="utf-8" When setting the highest pfn used in the guest, don't subtract 1 from the value read from the shared_info data. The value read already is the correct pfn. Fixes: 91e204d37f449 ("libxc: try to find last used pfn when migrating") Signed-off-by: Juergen Gross Acked-by: Wei Liu --- This is a backport candidate --- tools/libs/guest/xg_sr_save_x86_pv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/libs/guest/xg_sr_save_x86_pv.c b/tools/libs/guest/xg_sr_= save_x86_pv.c index 4964f1f7b8..dae7f2817f 100644 --- a/tools/libs/guest/xg_sr_save_x86_pv.c +++ b/tools/libs/guest/xg_sr_save_x86_pv.c @@ -468,7 +468,7 @@ static int map_p2m(struct xc_sr_context *ctx) =20 ctx->x86.pv.p2m_generation =3D ~0ULL; ctx->x86.pv.max_pfn =3D GET_FIELD(ctx->x86.pv.shinfo, arch.max_pfn, - ctx->x86.pv.width) - 1; + ctx->x86.pv.width); p2m_cr3 =3D GET_FIELD(ctx->x86.pv.shinfo, arch.p2m_cr3, ctx->x86.pv.wi= dth); =20 return p2m_cr3 ? map_p2m_list(ctx, p2m_cr3) : map_p2m_tree(ctx); --=20 2.26.2