tests/functional/test_mem_addr_space.py

19     # the VM generates empty logs. A delay of 1 second is added for
21     DELAY_Q35_BOOT_SEQUENCE = 1
35             # bits == 1 -> 32-bit; bits == 2 -> 64-bit
36             bits = int.from_bytes(fh.read(1), byteorder='little')
50         hotpluggable memory size is 60 GiB. Per slot, we reserve 1 GiB of memory
62         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=59.6G',
64                          '-object', 'memory-backend-ram,id=mem1,size=1G',
69         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
80         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=59.6G',
82                          '-object', 'memory-backend-ram,id=mem1,size=1G',
87         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
97         self.vm.add_args('-m', '512,slots=1,maxmem=59.5G',
99                          '-object', 'memory-backend-ram,id=mem1,size=1G',
115         self.vm.add_args('-m', '512,slots=1,maxmem=59.5G',
117                          '-object', 'memory-backend-ram,id=mem1,size=1G',
132         self.vm.add_args('-m', '512,slots=1,maxmem=59.5G',
134                          '-object', 'memory-backend-ram,id=mem1,size=1G',
152         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=4G',
154                          '-object', 'memory-backend-ram,id=mem1,size=1G',
159         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
166         1024 GiB and ends at 1 TiB - 1. If the max GPA falls in this range,
167         "above_4G" memory is adjusted to start at 1 TiB boundary for AMD cpus
171         be 40, TCG emulated CPUs have maximum of 1 TiB (1024 GiB) of
174         1024 GiB - 4 GiB - 1 GiB per slot for alignment - 32 GiB + 0.5 GiB
180         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=988G',
182                          '-object', 'memory-backend-ram,id=mem1,size=1G',
187         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
201         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=976G',
203                          '-object', 'memory-backend-ram,id=mem1,size=1G',
208         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
218         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=987.5G',
220                          '-object', 'memory-backend-ram,id=mem1,size=1G',
235         self.vm.add_args('-S', '-m', '512,slots=1,maxmem=975.5G',
237                          '-object', 'memory-backend-ram,id=mem1,size=1G',
254                          '-m', '512,slots=1,maxmem=976G',
256                          '-object', 'memory-backend-ram,id=mem1,size=1G',
268         force "above_4G" memory to start at 1 TiB for q35-7.1 machines
272         GiB with 1 GiB per slot for alignment and 0.5 GiB as non-hotplug
273         memory for the VM (1024 - 32 - 1 + 0.5). With 992 GiB, QEMU should
279                          '-m', '512,slots=1,maxmem=992G',
281                          '-object', 'memory-backend-ram,id=mem1,size=1G',
286         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
298                          '-m', '512,slots=1,maxmem=990G',
300                          '-object', 'memory-backend-ram,id=mem1,size=1G',
310         cxl memory window starts after memory device range. Here, we use 1 GiB
314         alignment constraints with 40 bits (1 TiB) of processor physical bits.
319                          '-m', '512,slots=1,maxmem=987G',
321                          '-device', 'pxb-cxl,bus_nr=12,bus=pcie.0,id=cxl.1',
322                          '-M', 'cxl=on,cxl-fmw.0.targets.0=cxl.1,cxl-fmw.0.size=1G')
326         self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
339                          '-m', '512,slots=1,maxmem=987G',
341                          '-device', 'pxb-cxl,bus_nr=12,bus=pcie.0,id=cxl.1')