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x-conformance=sidf_compatible IronPort-SDR: 1DsmRLY4CVsBQcI/NGNzx+vpAzkBdnSE7ukBj5VxYFyzfNimrm/3euzvBDuh2L4hh/zT1I03DG nle3LbFHQE4qNp9/GFlpwwqK/st+MXZZRE6cFdWC6pRtbwBkgz5TpmQaG1dIY85+vBfma6wMdF chQFBQc4IOxhBObWD1BV3ZzAVgxhDXyMxmFtRDTkywNQc56fe3Az3ovUp8RttftFzkUnE0kpOo F9L+3eQqFiSWYDKJ6pYaTOHyHRLpTdeqfoBQPRuXAfU83c7mybNKUavoBpUdDsxbacOuwZWwAb 5LU= X-SBRS: 2.7 X-MesageID: 8511637 X-Ironport-Server: esa4.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.68,278,1569297600"; d="scan'208";a="8511637" From: Roger Pau Monne To: Date: Thu, 7 Nov 2019 16:06:08 +0100 Message-ID: <20191107150609.93004-2-roger.pau@citrix.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191107150609.93004-1-roger.pau@citrix.com> References: <20191107150609.93004-1-roger.pau@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH for-4.13 1/2] x86/ioapic: remove usage of TRUE and FALSE in clear_IO_APIC_pin X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Andrew Cooper , Wei Liu , Jan Beulich , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) And instead use proper booleans. No functional change intended. Signed-off-by: Roger Pau Monn=C3=A9 Acked-by: Jan Beulich --- Cc: Juergen Gross --- xen/arch/x86/io_apic.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c index 37eabc16c9..b9c66acdb3 100644 --- a/xen/arch/x86/io_apic.c +++ b/xen/arch/x86/io_apic.c @@ -502,7 +502,7 @@ static void clear_IO_APIC_pin(unsigned int apic, unsign= ed int pin) struct IO_APIC_route_entry entry; =20 /* Check delivery_mode to be sure we're not clearing an SMI pin */ - entry =3D __ioapic_read_entry(apic, pin, FALSE); + entry =3D __ioapic_read_entry(apic, pin, false); if (entry.delivery_mode =3D=3D dest_SMI) return; =20 @@ -512,15 +512,15 @@ static void clear_IO_APIC_pin(unsigned int apic, unsi= gned int pin) */ if (!entry.mask) { entry.mask =3D 1; - __ioapic_write_entry(apic, pin, FALSE, entry); + __ioapic_write_entry(apic, pin, false, entry); } - entry =3D __ioapic_read_entry(apic, pin, TRUE); + entry =3D __ioapic_read_entry(apic, pin, true); =20 if (entry.irr) { /* Make sure the trigger mode is set to level. */ if (!entry.trigger) { entry.trigger =3D 1; - __ioapic_write_entry(apic, pin, TRUE, entry); + __ioapic_write_entry(apic, pin, true, entry); } __io_apic_eoi(apic, entry.vector, pin); } @@ -530,9 +530,9 @@ static void clear_IO_APIC_pin(unsigned int apic, unsign= ed int pin) */ memset(&entry, 0, sizeof(entry)); entry.mask =3D 1; - __ioapic_write_entry(apic, pin, TRUE, entry); + __ioapic_write_entry(apic, pin, true, entry); =20 - entry =3D __ioapic_read_entry(apic, pin, TRUE); + entry =3D __ioapic_read_entry(apic, pin, true); if (entry.irr) printk(KERN_ERR "IO-APIC%02x-%u: Unable to reset IRR\n", IO_APIC_ID(apic), pin); --=20 2.23.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel From nobody Thu Mar 28 12:04:51 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=none (zoho.com: 192.237.175.120 is neither permitted nor denied by domain of lists.xenproject.org) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; 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d="scan'208";a="8511638" From: Roger Pau Monne To: Date: Thu, 7 Nov 2019 16:06:09 +0100 Message-ID: <20191107150609.93004-3-roger.pau@citrix.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191107150609.93004-1-roger.pau@citrix.com> References: <20191107150609.93004-1-roger.pau@citrix.com> MIME-Version: 1.0 Subject: [Xen-devel] [PATCH for-4.13 2/2] x86/ioapic: don't use raw entry reads/writes in clear_IO_APIC_pin X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Andrew Cooper , Wei Liu , Jan Beulich , Roger Pau Monne Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) clear_IO_APIC_pin can be called after the iommu has been enabled, and using raw entry reads and writes will result in a misconfiguration of the entries already setup to use the interrupt remapping table. This fixes the following panic seen on AMD Rome boxes: (XEN) [ 10.082154] ENABLING IO-APIC IRQs (XEN) [ 10.087789] -> Using new ACK method (XEN) [ 10.093738] Assertion 'get_rte_index(rte) =3D=3D offset' failed at= iommu_intr.c:328 Signed-off-by: Roger Pau Monn=C3=A9 --- Cc: Juergen Gross --- xen/arch/x86/io_apic.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c index b9c66acdb3..13b41b46a3 100644 --- a/xen/arch/x86/io_apic.c +++ b/xen/arch/x86/io_apic.c @@ -514,13 +514,13 @@ static void clear_IO_APIC_pin(unsigned int apic, unsi= gned int pin) entry.mask =3D 1; __ioapic_write_entry(apic, pin, false, entry); } - entry =3D __ioapic_read_entry(apic, pin, true); + entry =3D __ioapic_read_entry(apic, pin, false); =20 if (entry.irr) { /* Make sure the trigger mode is set to level. */ if (!entry.trigger) { entry.trigger =3D 1; - __ioapic_write_entry(apic, pin, true, entry); + __ioapic_write_entry(apic, pin, false, entry); } __io_apic_eoi(apic, entry.vector, pin); } @@ -530,9 +530,9 @@ static void clear_IO_APIC_pin(unsigned int apic, unsign= ed int pin) */ memset(&entry, 0, sizeof(entry)); entry.mask =3D 1; - __ioapic_write_entry(apic, pin, true, entry); + __ioapic_write_entry(apic, pin, false, entry); =20 - entry =3D __ioapic_read_entry(apic, pin, true); + entry =3D __ioapic_read_entry(apic, pin, false); if (entry.irr) printk(KERN_ERR "IO-APIC%02x-%u: Unable to reset IRR\n", IO_APIC_ID(apic), pin); --=20 2.23.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel