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Wed, 30 Oct 2024 05:54:01 +0000 Message-ID: <7dbcb2de-89f9-445b-a096-2a3d03a2dfe7@amd.com> Date: Wed, 30 Oct 2024 06:53:47 +0100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] hw/riscv: Add Microblaze V 32bit virt board To: Alistair Francis , Sai Pavan Boddu Cc: qemu-devel@nongnu.org, qemu-riscv@nongnu.org, Paolo Bonzini , Palmer Dabbelt , Alistair Francis , Bin Meng , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei References: <20241017072507.4033413-1-sai.pavan.boddu@amd.com> Content-Language: en-US From: Michal Simek Autocrypt: addr=michal.simek@amd.com; keydata= xsFNBFFuvDEBEAC9Amu3nk79+J+4xBOuM5XmDmljuukOc6mKB5bBYOa4SrWJZTjeGRf52VMc howHe8Y9nSbG92obZMqsdt+d/hmRu3fgwRYiiU97YJjUkCN5paHXyBb+3IdrLNGt8I7C9RMy svSoH4WcApYNqvB3rcMtJIna+HUhx8xOk+XCfyKJDnrSuKgx0Svj446qgM5fe7RyFOlGX/wF Ae63Hs0RkFo3I/+hLLJP6kwPnOEo3lkvzm3FMMy0D9VxT9e6Y3afe1UTQuhkg8PbABxhowzj SEnl0ICoqpBqqROV/w1fOlPrm4WSNlZJunYV4gTEustZf8j9FWncn3QzRhnQOSuzTPFbsbH5 WVxwDvgHLRTmBuMw1sqvCc7CofjsD1XM9bP3HOBwCxKaTyOxbPJh3D4AdD1u+cF/lj9Fj255 Es9aATHPvoDQmOzyyRNTQzupN8UtZ+/tB4mhgxWzorpbdItaSXWgdDPDtssJIC+d5+hskys8 B3jbv86lyM+4jh2URpnL1gqOPwnaf1zm/7sqoN3r64cml94q68jfY4lNTwjA/SnaS1DE9XXa XQlkhHgjSLyRjjsMsz+2A4otRLrBbumEUtSMlPfhTi8xUsj9ZfPIUz3fji8vmxZG/Da6jx/c a0UQdFFCL4Ay/EMSoGbQouzhC69OQLWNH3rMQbBvrRbiMJbEZwARAQABzSlNaWNoYWwgU2lt ZWsgKEFNRCkgPG1pY2hhbC5zaW1la0BhbWQuY29tPsLBlAQTAQgAPgIbAwULCQgHAgYVCgkI CwIEFgIDAQIeAQIXgBYhBGc1DJv1zO6bU2Q1ajd8fyH+PR+RBQJkK9VOBQkWf4AXAAoJEDd8 fyH+PR+ROzEP/1IFM7J4Y58SKuvdWDddIvc7JXcal5DpUtMdpuV+ZiHSOgBQRqvwH4CVBK7p ktDCWQAoWCg0KhdGyBjfyVVpm+Gw4DkZovcvMGUlvY5p5w8XxTE5Xx+cj/iDnj83+gy+0Oyz VFU9pew9rnT5YjSRFNOmL2dsorxoT1DWuasDUyitGy9iBegj7vtyAsvEObbGiFcKYSjvurkm MaJ/AwuJehZouKVfWPY/i4UNsDVbQP6iwO8jgPy3pwjt4ztZrl3qs1gV1F4Zrak1k6qoDP5h 19Q5XBVtq4VSS4uLKjofVxrw0J+sHHeTNa3Qgk9nXJEvH2s2JpX82an7U6ccJSdNLYbogQAS BW60bxq6hWEY/afbT+tepEsXepa0y04NjFccFsbECQ4DA3cdA34sFGupUy5h5la/eEf3/8Kd BYcDd+aoxWliMVmL3DudM0Fuj9Hqt7JJAaA0Kt3pwJYwzecl/noK7kFhWiKcJULXEbi3Yf/Y pwCf691kBfrbbP9uDmgm4ZbWIT5WUptt3ziYOWx9SSvaZP5MExlXF4z+/KfZAeJBpZ95Gwm+ FD8WKYjJChMtTfd1VjC4oyFLDUMTvYq77ABkPeKB/WmiAoqMbGx+xQWxW113wZikDy+6WoCS MPXfgMPWpkIUnvTIpF+m1Nyerqf71fiA1W8l0oFmtCF5oTMkzsFNBFFuvDEBEACXqiX5h4IA 03fJOwh+82aQWeHVAEDpjDzK5hSSJZDE55KP8br1FZrgrjvQ9Ma7thSu1mbr+ydeIqoO1/iM fZA+DDPpvo6kscjep11bNhVa0JpHhwnMfHNTSHDMq9OXL9ZZpku/+OXtapISzIH336p4ZUUB 5asad8Ux70g4gmI92eLWBzFFdlyR4g1Vis511Nn481lsDO9LZhKyWelbif7FKKv4p3FRPSbB vEgh71V3NDCPlJJoiHiYaS8IN3uasV/S1+cxVbwz2WcUEZCpeHcY2qsQAEqp4GM7PF2G6gtz IOBUMk7fjku1mzlx4zP7uj87LGJTOAxQUJ1HHlx3Li+xu2oF9Vv101/fsCmptAAUMo7KiJgP Lu8TsP1migoOoSbGUMR0jQpUcKF2L2jaNVS6updvNjbRmFojK2y6A/Bc6WAKhtdv8/e0/Zby iVA7/EN5phZ1GugMJxOLHJ1eqw7DQ5CHcSQ5bOx0Yjmhg4PT6pbW3mB1w+ClAnxhAbyMsfBn XxvvcjWIPnBVlB2Z0YH/gizMDdM0Sa/HIz+q7JR7XkGL4MYeAM15m6O7hkCJcoFV7LMzkNKk OiCZ3E0JYDsMXvmh3S4EVWAG+buA+9beElCmXDcXPI4PinMPqpwmLNcEhPVMQfvAYRqQp2fg 1vTEyK58Ms+0a9L1k5MvvbFg9QARAQABwsF8BBgBCAAmAhsMFiEEZzUMm/XM7ptTZDVqN3x/ If49H5EFAmQr1YsFCRZ/gFoACgkQN3x/If49H5H6BQ//TqDpfCh7Fa5v227mDISwU1VgOPFK eo/+4fF/KNtAtU/VYmBrwT/N6clBxjJYY1i60ekFfAEsCb+vAr1W9geYYpuA+lgR3/BOkHlJ eHf4Ez3D71GnqROIXsObFSFfZWGEgBtHBZ694hKwFmIVCg+lqeMV9nPQKlvfx2n+/lDkspGi epDwFUdfJLHOYxFZMQsFtKJX4fBiY85/U4X2xSp02DxQZj/N2lc9OFrKmFJHXJi9vQCkJdIj S6nuJlvWj/MZKud5QhlfZQsixT9wCeOa6Vgcd4vCzZuptx8gY9FDgb27RQxh/b1ZHalO1h3z kXyouA6Kf54Tv6ab7M/fhNqznnmSvWvQ4EWeh8gddpzHKk8ixw9INBWkGXzqSPOztlJbFiQ3 YPi6o9Pw/IxdQJ9UZ8eCjvIMpXb4q9cZpRLT/BkD4ttpNxma1CUVljkF4DuGydxbQNvJFBK8 ywyA0qgv+Mu+4r/Z2iQzoOgE1SymrNSDyC7u0RzmSnyqaQnZ3uj7OzRkq0fMmMbbrIvQYDS/ y7RkYPOpmElF2pwWI/SXKOgMUgigedGCl1QRUio7iifBmXHkRrTgNT0PWQmeGsWTmfRit2+i l2dpB2lxha72cQ6MTEmL65HaoeANhtfO1se2R9dej57g+urO9V2v/UglZG1wsyaP/vOrgs+3 3i3l5DA= In-Reply-To: Content-Type: text/plain; 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envelope-from=michal.simek@amd.com; helo=NAM12-DM6-obe.outbound.protection.outlook.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 30 Oct 2024 09:08:38 -0400 X-BeenThere: qemu-riscv@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-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Sender: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Hi Alistair, On 10/30/24 03:54, Alistair Francis wrote: > On Thu, Oct 17, 2024 at 5:26 PM Sai Pavan Boddu wrote: >> diff --git a/hw/riscv/microblaze-v-virt.c b/hw/riscv/microblaze-v-virt.c >> new file mode 100644 >> index 00000000000..6603e6d6b06 >> --- /dev/null >> +++ b/hw/riscv/microblaze-v-virt.c >> @@ -0,0 +1,181 @@ >> +/* >> + * QEMU model of Microblaze V (32bit version) >> + * >> + * based on hw/microblaze/petalogix_ml605_mmu.c > > Just a question, are you sure the virt board should be based on the > petalogix_ml605_mmu? It is definitely based on ml605 and it is fair to say it and keep origin copyrights around. > This will be the reference Microblaze V implementation in QEMU, and > the petalogix_ml605_mmu might be a bit old now. It also uses a lot of > the Microblaze architecture components (like the interrupt controller) > compared to the RISC-V architecture components which might cause > issues for you in the future. > > Just something to keep in mind And the reason is that it is really design like that in design tool (Vivado). There is no risc-v specific interrupt controller use but origin axi intc used in origin Microblaze designs. Timer is the same story. ml605 board and it's chip is old but IPs which are used are still supported and used in new designs. And regarding using virt in name. We can create design like it is described but it is not going to work on standard evaluation boards without extra fmc cards for example. It means word virt is just description that it is not really target any specific board. Definitely name can change and suggestions are welcome. Thanks, Michal