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envelope-from=konrad.schwarz@siemens.com; helo=EUR05-AM6-obe.outbound.protection.outlook.com X-Spam_score_int: 6 X-Spam_score: 0.6 X-Spam_bar: / X-Spam_report: (0.6 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RDNS_NONE=0.793, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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: , Cc: Konrad Schwarz , Alistair Francis , Bin Meng , Palmer Dabbelt , Ralf Ramsauer Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @siemens.com) X-ZM-MESSAGEID: 1641312556794100001 Content-Type: text/plain; charset="utf-8" The RISC-V Debug Support specification suggests debuggers provide "virtual debug registers" to show state not directly visible in the ISA, and defines one such register, `priv', which encodes the processor's current operating mode in the two least significant bits. GDB represents virtual debug registers in the `org.gnu.gdb.riscv.virtual' feature of RISC-V target descriptions. This patch adds the `v' (hypervisor virtualization mode) bit to `priv' as specified by section 4.9.1 of version 1.0 of the RISC-V Debug Support specification. Signed-off-by: Konrad Schwarz --- gdb-xml/riscv-32bit-virtual.xml | 30 ++++++++++++++++++++++++++++-- gdb-xml/riscv-64bit-virtual.xml | 30 ++++++++++++++++++++++++++++-- target/riscv/gdbstub.c | 5 ++++- 3 files changed, 60 insertions(+), 5 deletions(-) diff --git a/gdb-xml/riscv-32bit-virtual.xml b/gdb-xml/riscv-32bit-virtual.= xml index 905f1c555d..7dad42cd67 100644 --- a/gdb-xml/riscv-32bit-virtual.xml +++ b/gdb-xml/riscv-32bit-virtual.xml @@ -5,7 +5,33 @@ are permitted in any medium without royalty provided the copyright notice and this notice are preserved. --> =20 + + - - + + + + + + + + + + + + + + + + + + + diff --git a/gdb-xml/riscv-64bit-virtual.xml b/gdb-xml/riscv-64bit-virtual.= xml index 62d86c237b..02c234670d 100644 --- a/gdb-xml/riscv-64bit-virtual.xml +++ b/gdb-xml/riscv-64bit-virtual.xml @@ -5,7 +5,33 @@ are permitted in any medium without royalty provided the copyright notice and this notice are preserved. --> =20 + + - - + + + + + + + + + + + + + + + + + + + diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c index 9c3f68eeaf..b3fa9f864e 100644 --- a/target/riscv/gdbstub.c +++ b/target/riscv/gdbstub.c @@ -136,7 +136,10 @@ static int riscv_gdb_get_virtual(CPURISCVState *cs, GB= yteArray *buf, int n) #ifdef CONFIG_USER_ONLY return gdb_get_regl(buf, 0); #else - return gdb_get_regl(buf, cs->priv); + RISCVCPU *const cpu =3D RISCV_CPU(cs); + CPURISCVState *const env =3D &cpu->env; + return gdb_get_regl(buf, riscv_cpu_virt_enabled(env) << 2 | cs->pr= iv); + /* per RISCV Debug Spec 1.0, 4.9.1 */ #endif } return 0; --=20 Konrad Schwarz