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Fri, 11 Jul 2025 12:03:35 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id D7dFMJf9cGiJIAAAD6G6ig (envelope-from ); Fri, 11 Jul 2025 12:03:35 +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: 139d6bf7-5e4f-11f0-a318-13f23c93f187 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1752235416; 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; bh=qnrnmP4GBV65UhqhO5BYhyi+ALFTJcryFgnMgTcHZS4=; b=EJi93OCV0bXb3JoYUvvXrPp3qf/iUNMMFkGJIIxwafu9KdsDbQUasmsojIJaSkeLNRxBhf 9eYJe/Wz0qI51iAL0Vf+GQpu4QKNHRHjDE1E1cb+O/eaG7BJZhfhTqho/o90vH7mNPigsX RIMS0DUUJAxgfUQHkH54O0hoEWuuwsM= Authentication-Results: smtp-out2.suse.de; dkim=pass header.d=suse.com header.s=susede1 header.b=EJi93OCV DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1752235416; 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; bh=qnrnmP4GBV65UhqhO5BYhyi+ALFTJcryFgnMgTcHZS4=; b=EJi93OCV0bXb3JoYUvvXrPp3qf/iUNMMFkGJIIxwafu9KdsDbQUasmsojIJaSkeLNRxBhf 9eYJe/Wz0qI51iAL0Vf+GQpu4QKNHRHjDE1E1cb+O/eaG7BJZhfhTqho/o90vH7mNPigsX RIMS0DUUJAxgfUQHkH54O0hoEWuuwsM= From: Juergen Gross To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org Cc: samuel.thibault@ens-lyon.org, Juergen Gross Subject: [MINI-OS PATCH] e820: fix e820_get_reserved_pfns() to reserve page aligned area Date: Fri, 11 Jul 2025 14:03:33 +0200 Message-ID: <20250711120333.23745-1-jgross@suse.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spam-Level: X-Spam-Flag: NO X-Rspamd-Queue-Id: F3B4E1F38C X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-3.01 / 50.00]; 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charset="utf-8" e820_get_reserved_pfns() needs to make sure to reserve only page aligned memory areas. Fixes: a7d27a7332ba ("mini-os: add memory map service functions") Signed-off-by: Juergen Gross Reviewed-by: Jan Beulich --- e820.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/e820.c b/e820.c index d8cfb1f4..1ffeaf00 100644 --- a/e820.c +++ b/e820.c @@ -365,7 +365,7 @@ unsigned long e820_get_reserved_pfns(int pages) unsigned long last =3D 0, needed =3D (long)pages << PAGE_SHIFT; =20 for ( i =3D 0; i < e820_entries && e820_map[i].addr < last + needed; i= ++ ) - last =3D e820_map[i].addr + e820_map[i].size; + last =3D round_pgup(e820_map[i].addr + e820_map[i].size); =20 if ( i =3D=3D 0 || e820_map[i - 1].type !=3D E820_TYPE_SOFT_RESERVED ) e820_insert_entry_at(i, last, needed, E820_TYPE_SOFT_RESERVED); --=20 2.43.0