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Tsirkin" , Cameron Esfahani , Ani Sinha , Paolo Bonzini , Roman Bolshakov , Shannon Zhao , Phil Dennis-Jordan , Igor Mammedov , qemu-arm@nongnu.org, Mohamed Mediouni Subject: [PATCH v4 07/15] target/arm: hvf: pass through CNTHCTL_EL2 and MDCCINT_EL1 Date: Mon, 28 Jul 2025 07:56:53 +0200 Message-Id: <20250728055701.38975-8-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250728055701.38975-1-mohamed@unpredictable.fr> References: <20250728055701.38975-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzI4MDA0MyBTYWx0ZWRfXwfFC5Uxw4ZIG jts1X3AyoTCSUEs2t7wYEvXbBGfXE6aNKCpJxad1uKjzBZHbqZ/KUwIcf/WcxuVoMkftG2rYCGe PEIfBkZ+8/ArhoWvn53GGorHcNTrjOK3frDd5tsAbkKgEeNQuWlkho0BWeVrP2Wwdg22AcYeBJX FGbaWdyiGdjBo96V92K2N64+bA4Iv+xaB4HyY8clOQsqJ0YSlSUx60FLcSwoFHw9ZuBbWz2173+ XdDUHdlhpMgHnL+BmXM1Lt9yegqIwsQa/fHdnHaL8c6QvG3luPPdID+8E4709sDWw3OR11Xfw= X-Proofpoint-ORIG-GUID: iuyx2U-TI4x5mjG90OO6J3ir_dC07rDQ X-Proofpoint-GUID: iuyx2U-TI4x5mjG90OO6J3ir_dC07rDQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-28_02,2025-07-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 clxscore=1030 bulkscore=0 adultscore=0 mlxlogscore=676 suspectscore=0 spamscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2507280043 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=57.103.85.142; envelope-from=mohamed@unpredictable.fr; helo=outbound.qs.icloud.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @unpredictable.fr) X-ZM-MESSAGEID: 1753682753267116600 Content-Type: text/plain; charset="utf-8" HVF traps accesses to CNTHCTL_EL2. For nested guests, HVF traps accesses to= MDCCINT_EL1. Pass through those accesses to the Hypervisor.framework library. Signed-off-by: Mohamed Mediouni --- target/arm/hvf/hvf.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 5b9865b569..63b7967053 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -297,6 +297,10 @@ void hvf_arm_init_debug(void) #define SYSREG_DBGWVR15_EL1 SYSREG(2, 0, 0, 15, 6) #define SYSREG_DBGWCR15_EL1 SYSREG(2, 0, 0, 15, 7) =20 +/* EL2 registers */ +#define SYSREG_CNTHCTL_EL2 SYSREG(3, 4, 14, 1, 0) +#define SYSREG_MDCCINT_EL1 SYSREG(2, 0, 0, 2, 0) + #define WFX_IS_WFE (1 << 0) =20 #define TMR_CTL_ENABLE (1 << 0) @@ -1392,6 +1396,12 @@ static int hvf_sysreg_read(CPUState *cpu, uint32_t r= eg, uint64_t *val) case SYSREG_OSDLR_EL1: /* Dummy register */ return 0; + case SYSREG_CNTHCTL_EL2: + assert_hvf_ok(hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_CNTHC= TL_EL2, val)); + return 0; + case SYSREG_MDCCINT_EL1: + assert_hvf_ok(hv_vcpu_get_sys_reg(cpu->accel->fd, HV_SYS_REG_MDCCI= NT_EL1, val)); + return 0; case SYSREG_ICC_AP0R0_EL1: case SYSREG_ICC_AP0R1_EL1: case SYSREG_ICC_AP0R2_EL1: @@ -1712,6 +1722,12 @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t = reg, uint64_t val) case SYSREG_OSDLR_EL1: /* Dummy register */ return 0; + case SYSREG_CNTHCTL_EL2: + assert_hvf_ok(hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_CNTHC= TL_EL2, val)); + return 0; + case SYSREG_MDCCINT_EL1: + assert_hvf_ok(hv_vcpu_set_sys_reg(cpu->accel->fd, HV_SYS_REG_MDCCI= NT_EL1, val)); + return 0; case SYSREG_LORC_EL1: /* Dummy register */ return 0; --=20 2.39.5 (Apple Git-154)